Arizona Diamondbacks right-hander Corbin Burnes (elbow) has been diagnosed with a teres major strain and has been pulled back from his throwing progression, manager Torey Lovullo told Nick Piecoro of The Arizona Republic. The skipper said the setback probably pushes Burnes' timeline for a return to around September. The 31-year-old veteran only made 11 starts in his first year in Arizona in 2025 before needing Tommy John surgery to fix a torn UCL in his right elbow. There was hope that the former Cy Young winner and four-time All-Star would return at some point in July this year for the Snakes, but his recent setback now means he won't return until the final month of the regular season. It's a tough blow for the D-backs and for any fantasy managers who were stashing the former fantasy ace in an injured-list spot all year. It's now hard to justify holding onto Burnes in redraft leagues. He's currently rostered in 33% of Yahoo leagues.

Milwaukee Brewers right-handed pitching prospect Tyson Hardin, who is ranked as the team's No. 17 prospect per MLB Pipeline, could be on the verge of making his first appearance in the big leagues soon after impressing lately following his promotion from Double-A Biloxi to Triple-A Nashville. Hardin was 0-3 with a 7.67 ERA and 1.77 WHIP in his seven starts with Biloxi to begin the 2026 season, but he also struck out 43 batters and walked just 12 in 29 1/3 innings. In his three starts for Nashville, the 24-year-old former 12th-rounder out of Mississippi State University has allowed only three runs (two earned) while walking seven and fanning 18 in 18 2/3 frames. The 6-foot-2, 185-pounder is primarily a fastball/slider pitcher who lacks overpowering velocity, but he makes up for it with a deceiving low arm angle that generates plenty of weak contact. Hardin has the control necessary to stick in Milwaukee's rotation in the second half of the 2026 season if he gets a chance, but right now, he's only worth stashing in dynasty/keeper formats.

Cincinnati Reds right-hander Rhett Lowder (shoulder) will be reinstated from the 15-day injured list to start on Sunday in St. Louis against the division-rival Cardinals, manager Terry Francona told Charlie Clifford of NBC 5 Cincinnati. Lowder has been cleared to rejoin the Reds' starting rotation this weekend after allowing three runs with no walks and eight strikeouts in five innings during his minor-league rehab start with Triple-A Louisville on Tuesday. He was able to get up to 70 pitches. The 24-year-old former seventh overall pick in 2023 out of Wake Forest University will be a shaky fantasy baseball streamer on Sunday at Busch Stadium after being sidelined since early May with a right-shoulder injury. Before his stint on the IL, Lowder went 3-3 with a 5.40 ERA (3.77 FIP) and 1.41 WHIP with 27 strikeouts and 18 walks in 38 1/3 innings over his first eight starts. Lowder has only made 14 starts in the big leagues since debuting in Cincy in 2024 and has struggled with injuries, but his high-end velocity and strikeout upside make him worth stash consideration in deeper leagues now that he's on the cusp of a return. He's currently rostered in just 6% of Yahoo leagues.

Seattle Mariners catcher Cal Raleigh (oblique) will start a minor-league rehab assignment this Sunday at High-A Everett, according to Daniel Kramer of MLB.com. From there, the plan is for Raleigh to transition to Triple-A Tacoma and play the rest of the week there. After that, the Mariners will reassess Raleigh's status. Barring a setback once the left-handed slugger resumes playing in games, he could rejoin the active MLB roster for the start of a homestand on June 16. The 29-year-old former third-round pick in 2018 out of Florida State University was a first-time All-Star in 2025 after he led the league in home runs (60) and RBI (125) in 159 regular-season games. Things have not gone swimmingly for Raleigh so far in 2026, though, as he currently owns a .161/.243/.317 slash line with an ugly .560 OPS and 31.5% strikeout rate in 181 plate appearances. Fantasy managers must hold him through his slump and injury, though, and hope he can turn things around when he returns. Raleigh has elite raw power at the catching position and has slugged at least 30 homers in each of his last three seasons.