Arizona Diamondbacks right-hander Ryne Nelson (2-3) allowed one run on six hits and three walks while striking out three across eight innings against the Rockies in his previous start. He owns a 2.36 ERA, 0.93 WHIP, and a 6.6 K:9 across 34 1/3 innings in his last five outings. Overall, he owns a 4.65 ERA, 1.18 WHIP, and 49 strikeouts through 60 frames this season. Nelson will likely see regression, as his BB% is up from 6.6% to 7.5% this season, while his SIERA is currently sitting at 4.54. The Diamondbacks right-hander has pitched well enough to become a starter to target off the waiver wire. Nelson will look to continue his recent success in his next scheduled start against the Mariners at T-Mobile Park in Seattle. Fantasy managers might want to see how Nelson fares against the Mariners before adding him everywhere. However, managers needing a pitching boost can add Nelson, as he's rostered in 60% of Yahoo leagues.

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Baltimore Orioles catcher Samuel Basallo went 2-for-3 with a home run and two RBI in Friday's 6-5 loss to the Toronto Blue Jays. Basallo crushed a solo shot off Austin Voth during the bottom of the fifth inning, raising his home run total to nine on the season. The 21-year-old is starting to heat up and is hitting .364 (4-for-11) with two home runs, six RBI, and three runs scored over 14 plate appearances in his last five games. He is ranked as the No. 1 catcher to add based on the latest RotoBaller waiver wire rankings. Basallo is rostered in 55% of Yahoo leagues and is emerging as a top waiver wire add due to his recent hot streak.

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Cincinnati Reds third baseman/outfielder Noelvi Marte went 3-for-5 with a double and three runs scored in Friday's game against Triple-A St. Paul. He has now logged multi-hit efforts in seven of his last 12 games, while slashing .438/.451/.792 with five home runs, 14 RBI, 10 runs, and a stolen base with Triple-A Louisville. The 24-year-old continues to make a case in the minors for another promotion after being optioned by the Reds in mid-April. Marte struggled mightily with a .138 (4-for-29) in 11 games in the big leagues this season before being optioned, but could force the issue if he continues to wield a hot bat in Triple-A. Fantasy managers with a NA spot or searching for a 3B/OF to stash should target Marte off the waiver wire as he's currently only rostered in 30% of Yahoo leagues.

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Seattle Mariners closer Andres Munoz ran into trouble again on Friday, blowing his fourth save of the season before the Mariners ultimately defeated the Arizona Diamondbacks in extra innings. Munoz is now just 9-for-13 in save opportunities and has struggled to lock down games consistently as June approaches. The 27-year-old entered the season as one of the American League's premier closers, but he currently owns a 4.98 ERA and 1.34 WHIP. A decline in four-seam fastball usage may be contributing to his struggles. Munoz has thrown the pitch 25.2 percent of the time this season after using it 35 percent of the time in 2025, and the pitch carries a minus-three run value. The talent remains evident, but fantasy managers should monitor the situation closely as his grip on save opportunities becomes less secure. If Munoz continues to struggle, the Mariners could turn to Jose A. Ferrer or Matt Brash for save opportunities.

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Cincinnati Reds outfielder JJ Bleday went 2-for-3 with a solo home run and a walk in Friday's 8-3 loss to the Atlanta Braves. Bleday blasted his eighth home run of the season off Braves starter Grant Holmes in the bottom of the fourth inning on Friday. His home run traveled 393 feet with an exit velocity of 108.6 mph. He has now homered in two of his last four games. Overall, the 28-year-old is now slashing .287/.392/.604 with eight home runs, 22 RBI, 17 runs, and a stolen base in 28 games this season. He has homered seven times over 111 plate appearances in May while posting a 13.5 BB% and .968 OPS in 25 contests. Bleday is rostered in 40% of Yahoo Fantasy leagues and is emerging as a must-add off the waiver wire in all leagues.

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Milwaukee Brewers right-hander Trevor Megill picked up his seventh save of the season on Friday, securing his second save in as many appearances. The veteran reliever appears to be turning a corner after a rocky April, posting a 2.00 ERA during May while reestablishing himself as Milwaukee's preferred ninth-inning option. Megill owns a 4.50 ERA on the season and has recorded 25 strikeouts in 20 innings and continues to lead the club in saves. Abner Uribe remains in the mix for occasional save chances, although Megill has handled the majority of the recent opportunities. With the Brewers continuing to pile up wins, fantasy managers should not overly concerned about a lack of save chances. Megill is trending in the right direction entering June and remains an elite source of saves.

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San Francisco Giants right-hander Caleb Kilian endured his first blown save of the season on Friday, allowing five earned runs on five hits, including two home runs, in a loss to the Colorado Rockies. The rough outing was an unusual one for Kilian, who entered the game with a 2.22 ERA and 0.99 WHIP. The 28-year-old is tied for the team lead with three saves and has been one of the Giants' most effective relievers this season. After missing all of 2025 because of injuries, Kilian has found new life in San Francisco following a transition from the rotation to the bullpen. Fantasy managers should remain optimistic despite the disappointing outing. His underlying metrics remain encouraging, but his ability to bounce back from his first significant stumble of the season will be worth monitoring in the coming weeks.

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Detroit Tigers right-hander Casey Mize (groin) has been placed on the 15-day injured list, retroactive to May 28, due to right groin tightness. Manager A.J. Hinch indicated the move was precautionary, noting that Mize requires a slower week as he works through the issue. The 29-year-old has been one of Detroit's most reliable starters in 2026, posting a 2.27 ERA, 0.97 WHIP, and 49 strikeouts across 47 2/3 innings in nine starts. Mize has been especially dominant lately, recording a 1.45 ERA over his last seven outings after a difficult start to the season. While the injury does not appear serious, his absence leaves a noticeable void in the Tigers' rotation. The former No. 1 overall pick has emerged as a key contributor in his sixth season in Detroit.

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Chicago White Sox slugger Munetaka Murakami (hamstring) is expected to miss approximately two weeks after exiting Friday's game against the Detroit Tigers with a hamstring injury. Initial evaluations indicated a hamstring strain, although Murakami is scheduled to undergo additional testing on Saturday. The 26-year-old has been one of baseball's biggest stories in his first MLB season after arriving from Japan's NPB. He is tied for the American League lead with 20 home runs and owns a .240/.378/.560 slash line through 57 games. While any absence from a player with Murakami's power production will be difficult for Chicago to absorb, the early prognosis suggests the White Sox avoided a more serious injury.

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San Francisco Giants starting pitcher Logan Webb (knee) is back on the mound for Friday's game against the Colorado Rockies. Webb was activated from the 15-day Injured List after missing a few weeks due to a right knee injury. The right-hander has posted an ugly 5.06 ERA, 1.40 WHIP, and a 42:15 K:BB ratio across 48 innings this season. Despite his early struggles, Webb remains someone worth rostering in all fantasy formats. He'll hopefully get back on the right track with this knee injury behind him. In a corresponding move, right-hander Tyler Mahle (hamstring) swaps places with Webb and lands on the 15-day Injured List.

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Colorado Rockies infielder Ethan Holliday (foot) will undergo season-ending surgery after suffering a left foot stress fracture. This is a tough break for the 19-year-old stud. Through 33 games, Holliday was slashing .262/.395/.557 with nine home runs and 32 RBI with Low-A Fresno. Holliday was the fourth overall selection during the 2025 MLB Draft. He's currently the Rockies' top prospect and the No. 17 prospect in baseball, according to MLB Pipeline. The expectation is that Holliday will be fully healed and ready to go for Spring Training.

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Arizona Diamondbacks starting pitcher Corbin Burnes (elbow) faced live hitters for the first time this year on Friday. Burnes was able to throw a 20-pitch session without any issues. D-Backs manager Torey Lovullo said that Burnes will have another live session on Tuesday. If everything continues to go well, Burnes could potentially go on a minor league rehab assignment after Tuesday's session. The right-hander continues to work his way back from elbow surgery. There's a chance that Burnes is back on the big league mound before the end of June. With that being said, Burnes is looking like an interesting stash candidate with his return to the mound looming.

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Chicago White Sox first baseman Munetaka Murakami (hamstring) was removed early during Friday's game against the Detroit Tigers. Murakami appeared to have suffered a hamstring injury while running to first base in the third inning. He was pulled from the contest due to hamstring tightness and is expected to undergo further testing. Before leaving, Murakami was hitless during his two plate appearances in the game. Fantasy managers will need to check back for another update on his status. They shouldn't be shocked if he does end up requiring a stint on the Injured List. If he does miss time, Jacob Gonzalez could be called up to make his big league debut.

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San Francisco Giants outfielder Jung Hoo Lee (back) was activated off the 10-day Injured List on Friday. Lee will start in right field and bat sixth against right-hander Michael Lorenzen on Friday. Lee has been out since May 22 due to a back strain. Before the injury, Lee was slashing .268/.311/.385 with three home runs, 17 RBI, and 10 walks. He doesn't offer a ton of power upside with the bat, but he's a decent contact hitter. Lee does enough at the plate consistently to warrant a look in deep leagues for fantasy managers struggling to find production.

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Boston Red Sox outfielder Roman Anthony appears to have suffered a setback during his rehab process. Anthony reportedly felt discomfort while hitting off a tee on Thursday. As a result, Anthony has been shut down from swinging the bat for now. This is the second time that Anthony has suffered a setback while rehabbing his finger injury. The hope was that Anthony would be able to return by early June. This setback might push that timetable back further, but fantasy managers will have to wait and see what the team decides to do. There should be another update on Anthony in the coming days.

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St. Louis Cardinals catcher Jimmy Crooks was recalled from Triple-A Memphis on Friday. He'll join the big league roster after slashing .262/.412/.567 with 13 home runs across 39 games in the minors this season. Manager Oliver Marmol has made it clear that Crooks was not brought up to sit on the bench. He should get the lion's share of the playing time, with Ivan Herrera serving as the personal catcher for Michael McGreevy and Andre Pallante. Crooks is not in the starting lineup on Friday, but figures to get into the lineup this weekend. Fantasy managers in need of catching help should consider adding Crooks. It's difficult to find catchers who can contribute consistently at the plate, and Crooks has shown the potential of being a reliable bat.

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Miami Marlins starting pitcher Eury Perez (hamstring) was placed on the 15-day Injured List on Friday. This comes after Perez was forced to make an early exit from Wednesday's start against the Toronto Blue Jays. He underwent additional testing, which revealed a right hamstring strain. The team hasn't revealed how long they expect Perez to be out, but hamstring issues often linger. Fantasy managers should expect to be without Perez for at least a few weeks. In a corresponding move, right-hander Josh Ekness has been recalled from Triple-A Jacksonville. It's unclear what the team plans to do with the vacant rotation spot, but that decision should be made soon.

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Philadelphia Phillies starting pitcher Aaron Nola was placed on the paternity leave list on Friday. The right-hander will be away from the team for a few days while he welcomes a new member to his family. Nola is currently scheduled to take the ball against the San Diego Padres on Tuesday. Nola should be back in time for that game, so fantasy managers shouldn't need to worry about him missing a start. The right-hander has posted ugly numbers anyway, with a 5.16 ERA, 1.45 WHIP, and 56:18 K:BB ratio across 11 starts this season. In a corresponding move, reliever Nolan Hoffman has been recalled to take over the spot on the active roster. Fantasy managers should check back ahead of Tuesday's game for another update on Nola.

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Milwaukee Brewers relief pitcher Abner Uribe has been suspended one game by the MLB for his inappropriate celebration during Wednesday's game against the St. Louis Cardinals. Uribe did a crotch-chopping celebration toward the Cardinals' dugout following an inning-ending strikeout. He is appealing the suspension and is available to pitch until the appeal is heard and a final decision is made. The right-hander holds a 4.19 ERA and a 21:8 K:BB ratio with five saves across 19.1 innings of work this season. Uribe is a key piece to the Brewers' bullpen, so hopefully he won't get himself into more trouble with these types of stunts.

From RotoBaller

According to the team, the St. Louis Cardinals have promoted No. 7-ranked prospect Jimmy Crooks to the major league roster. Crooks made his MLB debut in the back half of the 2025 campaign, but he appeared in only 15 games during this short stint. However, Crooks has played at a high level with the Triple-A club this season and could earn a much larger role in his second stint. Last summer with the Cardinals, Crooks posted a low .133/.152/.244 line with one long ball. This season, Crooks has been among the top-performing catchers in the minor leagues as he has carried an impressive .262/.412/.567 slash line with a .979 OPS and 13 home runs. While the Cardinals have two proven backstops on the roster in Pedro Pages and Ivan Herrera, if Crooks can continue this power surge, he could eventually carve out a role. For now, he is worth a pick-up in deeper two-catcher leagues.

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