Miami Marlins left-handed pitching prospect Robby Snelling (elbow) is scheduled to visit with Dr. Keith Meister in Texas on Thursday, according to Christina De Nicola of MLB.com. Snelling made his major-league debut on May 8 in a loss against the Washington Nationals and was then placed on the 15-day injured list last Wednesday with a UCL sprain in his left elbow. The 22-year-old is out indefinitely and could need season-ending surgery on his elbow, depending on what Meister finds during his examination on Thursday. If Snelling gets good news and doesn't need to go under the knife, he still probably won't be an option to rejoin Miami's starting rotation until around the All-Star break in mid-July or later. After Snelling's injury, the Fish called up fellow lefty starter Braxton Garrett to join the rotation, but he disappointed in his 2026 debut and allowed five earned runs on five walks and three strikeouts against the Minnesota Twins on May 14 in just 1 1/3 innings pitched. Snelling is currently rostered in less than 10% of Yahoo leagues after his injury.

The Houston Astros placed second baseman Jose Altuve (oblique) on the 10-day injured list on Monday with a left-oblique strain, according to Chandler Rome of The Athletic. In a corresponding move, shortstop Jeremy Pena (hamstring, neck) was reinstated from the 10-day IL. Altuve suffered a Grade 2 oblique strain while swinging on Saturday against the division-rival Texas Rangers and could miss anywhere from four to six weeks, so fantasy managers definitely shouldn't expect a quick recovery for the veteran second baseman. Braden Shewmake made the start at the keystone for the Astros in Monday's series opener in Minnesota against the Twins, but Brice Matthews could also see more playing time at second until Altuve is fully healed. Despite a mediocre start to his 2026 season, Altuve should be held in all fantasy baseball formats. The former MVP, nine-time All-Star, and seven-time Silver Slugger winner heads to the IL with a .245/.326/.380 slash line, .706 OPS, only four home runs, 12 RBI, 27 runs scored, and a steal in his 163 at-bats.

New York Mets starting pitching prospect Jack Wenninger is off to a fantastic start to the season in Triple-A. With eight outings in the books, Wenninger has made his mark as one of the most intriguing pitching prospects to stash in fantasy baseball, especially since he's getting very close to his MLB debut. Through eight starts (35.2 innings), he has a 1.51 ERA with 9.84 K/9 and 0.25 HR/9. His sinker is averaging 94 mph, and he's getting 44.4% whiff on his changeup. On the other hand, he has a 5.55 BB/9 rate, and his xFIP has jumped to 4.72, suggesting he's been walking too many batters and perhaps getting a bit lucky on the mound. That's something to keep in mind, especially as the Mets consider calling him up to face big-league hitting. At the same time, though, the results speak for themselves, and we've been very encouraged by Wenninger's performance through the first month and a half this year. He remains a top stash among pitchers in fantasy baseball.

Texas Rangers general manager Chris Young said on Monday on 105.3 The Fan that shortstop Corey Seager (back) is going on the injured list, according to Shawn McFarland of The Dallas Morning News. "He's just too valuable and important to the rest of our season," Young said. "Our anticipation is this will give him the chance to reset mentally." The Rangers must not have liked what they saw after the 32-year-old veteran visited with a back specialist back in Arlington on Monday. With Seager battling a back injury over the weekend, Ezequiel Duran received two straight starts at the 6 and should remain there for Monday's series opener in Denver against the Colorado Rockies. The Rangers and fantasy managers are hoping that some time off for Seager will help him get right at the plate when he returns from the IL, as he has hit a lowly .179/.286/.353 with a .638 OPS, seven home runs, 20 RBI, 22 runs scored, and a steal in his 156 at-bats. The five-time All-Star hit 30-plus homers from 2022 to 2024, but he was also plagued by injuries last year and is more of an injury risk than ever.