MLB Player News

The Astros activated De Los Santos (knee) from the 15-day injured list Monday.

De Los Santos got a late start to the season due to a right knee strain, but he's ready to go after making four scoreless rehab appearances. The right-hander will operate in a middle relief role for Houston.

The Blue Jays selected Fleming's contract from Triple-A Buffalo on Monday.

Toronto will swap Fleming into the bullpen in place of right-hander Austin Voth, who was designated for assignment after covering 2.2 innings in relief during Sunday's 3-0 loss to the White Sox. Like Voth before him, Fleming is expected to serve as a multi-inning option out of the bullpen and is likely to see most of his usage in lower-leverage spots. Fleming last saw MLB action with the Pirates in 2024, logging a 4.02 ERA and 1.53 WHIP over 31.1 innings across 25 appearances (three starts).

The Blue Jays designated Voth for assignment Monday.

Just one day after being called up from Triple-A Buffalo, Voth will surrender his spot on Toronto's 40-man roster. The right-hander will be replaced by lefty Josh Fleming, whose contract was selected from Buffalo in a corresponding move. Fleming will provide the Blue Jays with a fresh arm capable of covering multiple frames out of the bullpen after Voth yielded one earned run on three hits and one walk across 2.2 innings during his Toronto debut in Sunday's 3-0 loss to the White Sox.

The Red Sox reinstated Whitlock (personal) from the paternity leave list Monday.

Boston sent out right-hander Tyler Uberstine to Triple-A Worcester to clear room on the active roster for Whitlock, who spent the maximum three days away from the Red Sox while observing the birth of his child. The 29-year-old right-hander should return to a high-leverage role in the Boston bullpen.

The Astros designated Munoz for assignment Monday.

A Rule 5 selection over the winter, Munoz won a spot in the Houston bullpen coming out of spring training but will wind up losing his spot on the 40-man roster less than two weeks into the season after yielding seven earned runs over four innings across three appearances. Assuming he clears waivers, Houston will need to offer the 25-year-old righty back to Cincinnati.

The Cubs recalled Assad from Triple-A Iowa on Monday and will have him start Tuesday's game at Tampa Bay, Sahadev Sharma of The Athletic reports.

With Matthew Boyd (biceps) and Cade Horton (forearm) landing on the injured list within the past two days, the Cubs will turn to Assad to fill one of the two openings in the rotation. After falling short in his bid for a spot on the Cubs' Opening Day roster, Assad has made two starts for Iowa this season, giving up seven earned runs on 14 hits and six walks while striking out seven over seven innings. The right-hander has a much stronger track record over parts of four seasons in the majors, accruing a 3.43 ERA, 1.33 WHIP and 9.6 K-BB% over 331 innings.

The Marlins placed Fairbanks on the paternity leave list Monday.

The transaction was anticipated, as Fairbanks was used as an opener in Sunday's 7-6 win over the Yankees so that he could leave the team sooner in order to be with his growing family. Fairbanks will likely rejoin the active roster for Thursday's game against the Reds. Anthony Bender picked up a save Sunday and could get more chances this week while Fairbanks is away. Calvin Faucher and Andrew Nardi are also candidates to see save chances.

The Orioles placed Enns on the 15-day injured list Monday with a left foot infection.

The injury shouldn't require Enns to miss more than the minimum 15 days. Taking Enns' spot on the roster will be Brandon Young, who was called up from Triple-A Norfolk to serve as the Orioles' starting pitcher in Monday's game versus the White Sox.

McArthur (elbow) is expected to resume a throwing program Monday, MLB.com reports.

McArthur has yet to pitch in a game since he underwent surgery following the 2024 season to address an olecranon fracture in his right elbow. He required another procedure last July to remove screws from his elbow and was expected to be ready to go for the start of spring training, but he needed to be shut down again after experiencing inflammation in the elbow. The Royals have characterized McArthur's setback as minor, and though he'll start throwing again this week, he's expected to be eased along slowly in his rehab program. The reliever appears unlikely to be ready to return from the injured list until at least May.

Kolek (oblique) threw three innings and 49 pitches Thursday during a simulated game at extended spring training, MLB.com reports.

Kolek is in the process of building back up after suffering a Grade 1 left oblique strain in late February and missing the remainder of the Cactus League. The 28-year-old remains in Arizona but could soon report to an affiliate to begin what will likely be an extended minor-league rehab assignment. Kolek isn't projected to return from the Royals' injured list until late April or early May.