The Rockies reassigned Bellozo to minor-league camp Monday.

After compiling a 4.65 ERA, 1.33 WHIP and 54:23 K:BB over 81.1 innings as a swingman for Miami in 2025, Bellozo didn't perform well enough in his first spring training with the Rockies to win a spot on the Opening Day roster as a starter or long reliever. He's expected to open the upcoming season at Triple-A Albuquerque.

Blue Jays general manager Ross Atkins said Thursday that Berrios (elbow) will throw off the mound before the end of this week, Mitch Bannon of The Athletic reports.

Berrios was diagnosed last week with a stress fracture in his right elbow, but he and the Blue Jays believe that the hurler will be able to pitch through the injury. The right-hander hasn't made a game appearance in three weeks, so even if things go smoothly with his elbow, Berrios will need time to get built up before Toronto considers him for its rotation.

Blue Jays GM Ross Atkins said Thursday that Bieber (elbow) will throw off a mound this week, Keegan Matheson of MLB.com reports.

The right-hander has been limited to throwing on flat ground while working his way back from shoulder fatigue, so a return to mound work is a significant development in his rehab program. Bieber still has a lengthy road ahead of him while building up to face live batters and eventually embarking on a rehab assignment, but a return in early May still appears to be on the table.

Blue Jays general manager Ross Atkins said Thursday that Yesavage's (shoulder) velocity "bumped back up" during a "very effective" appearance in a minor-league game Wednesday, Mitch Bannon of The Athletic reports.

It's an encouraging step for Yesavage, who did not make any spring training appearances while battling a right shoulder impingement. A rehab assignment for the rookie right-hander would appear imminent, and he will likely require several rehab starts before he's ready to rejoin the Blue Jays' rotation.

Wheeler (shoulder) is scheduled to throw three innings and/or 50 pitches in Saturday's rehab start with Triple-A Lehigh Valley, Corey Seidman of PHLY Sports reports.

It will be Wheeler's first official game action since last September's venous thoracic outlet syndrome surgery. The Phillies will likely want Wheeler to get his pitch count up to the 80-to-90 range before clearing him for his season debut, so the right-hander will likely make two additional rehab starts after Saturday before returning in mid-April if all goes well.

Phillips will begin the season as part of the Marlins' bullpen, Christina De Nicola of MLB.com reports.

The 28-year-old righty produced a 1.13 ERA and 9:5 K:BB in eight innings this spring to secure his spot. Phillips figures to fill a middle-relief role after posting a 2.78 ERA, 1.15 WHIP and 52:24 K:BB over 77.2 innings last season with two wins, four saves and eight holds in 54 appearances for Miami.

The Padres placed Waldron (lower body) on the 15-day injured list Wednesday.

Waldron, who underwent hemorrhoid surgery in late February, is still in the process of getting built back up again and isn't expected to be ready to return from the IL until around mid-April at the earliest, per MLB.com. Waldron was able to pitch in two Cactus League games before the end of spring training, so he could be cleared to head out on a rehab assignment with Triple-A El Paso in the near future.

The Blue Jays announced Wednesday that Miles won a spot in the Opening Day bullpen.

A Rule 5 pick out of the Giants system, Miles has yet to pitch above the Single-A level and didn't take the mound at all in 2025 while he recovered from Tommy John surgery. The 25-year-old right-hander showed enough this spring to stick on the 26-man active roster, however, posting a 3.72 ERA and 11:5 K:BB in 9.2 innings and topping out at 98.1 miles per hour with his sinker in his final spring outing. Miles will begin his big-league career in a low-leverage role, but his premium velocity could allow him to move up the depth chart if he shows he can harness it effectively.

The Diamondbacks announced March 6 that Elbis retired from professional baseball.

After posting a 3.39 ERA, 1.19 WHIP and 112:47 K:BB in 135.1 innings between High-A Hillsboro and Double-A Amarillo in 2024, Elbis was added to the Diamondbacks' 40-man roster following that season. Arizona then optioned Elbis to Double-A last March, but the right-hander didn't end up making any appearances in 2025 after initially landing on Amarillo's injured list last April before being shifted to the restricted list less than two weeks later. Elbis was activated from the restricted list following the season, but the 23-year-old didn't report to spring training before electing to bring an end to his playing career.

Castillo is slated to make his first start during the Mariners' fifth game of the season Monday versus the Yankees at T-Mobile Park, Adam Jude of The Seattle Times reports.

Emerson Hancock is the Mariners' de facto fifth starter while stepping into the rotation in place of the injured Bryce Miller (oblique), but he'll end up taking the hill for Seattle's fourth game Sunday versus Cleveland while Castillo moves to the back of the schedule. The rotation setup is likely just a means to get Castillo some extra rest after he started the Mariners' spring training finale Monday in San Diego. Castillo covered five innings and tossed 76 pitches in that outing, so he should be ready to handle a relatively normal workload in his 2026 debut.