MLB Player News

Marte was scratched from the lineup for Tuesday's game against the Orioles due to lower-back tightness, Jody Jackson of Bally Sports Arizona reports.

It's unclear how severe Marte's injury is, but the Diamondbacks may provide more details in the near future. In the meantime, Ildemaro Vargas will slide over to second base Tuesday, opening up first for Luken Baker.

Diaz is out of the lineup for Tuesday's game against the Rockies, Matt Kawahara of the Houston Chronicle reports.

Diaz started the previous three games and will receive a day off after going 2-for-11 with a solo homer and an additional RBI during that stretch. Christian Vazquez will work behind the plate and bat ninth versus Colorado righty Michael Lorenzen.

The Padres placed Pivetta on the 15-day injured list Tuesday due to right elbow inflammation.

In a corresponding move Tuesday, the Padres recalled right-handed reliever Alek Jacob from Triple-A El Paso. Pivetta suffered the injury during his latest start against the Rockies on Sunday, when he exited in the fourth inning. Though the Padres are labeling Pivetta's injury as inflammation, he could be sent in for further tests as the team looks to establish a timeline for his return.

Casas (knee) was diagnosed with an abdominal strain Tuesday, Tim Healey of The Boston Globe reports.

Casas began the regular season on the injured list to finish up his recovery from patellar tendon surgery but began to have problems with his left side after he resumed a swinging progression. Now that he's been confirmed to be dealing with an abdominal strain, the 26-year-old will be shut down from all activity until he begins to feel better. The Red Sox will then begin to build him up in a similar fashion to spring training, at which point a clearer timeline for his return to play could emerge.

The Padres recalled Jacob from Triple-A El Paso on Tuesday.

In a corresponding move Tuesday, the Padres placed Nick Pivetta (elbow) on the 15-day injured list, retroactive to April 13. Jakob began the 2026 season with Triple-A El Paso, where he has notched a 0.00 ERA and 0.99 WHIP through 7.1 innings across five appearances.

Hoskins is out of the lineup for Tuesday's game against the Cardinals.

Hoskins started the previous eight games and will head to the bench after going 5-for-29 (.172 average) with three doubles, a homer, four RBI and five runs during that span. Chase DeLauter is serving as the designated hitter Tuesday while George Valera picks up a start in the outfield.

Gelof is starting in right field and batting seventh Tuesday versus the Rangers.

Tuesday's game will mark Geldof's first career regular-season appearance in the outfield at the major-league level. The second baseman got work in the outfield during spring training as well as a few games of work in Triple-A Las Vegas after failing to make the Opening Day roster.

The Tigers paused Horn's (elbow) rehab assignment Tuesday, Cody Stavenhagen of The Athletic reports.

Horn has been working his way back from arthroscopic surgery he underwent on his left elbow in the offseason and has made two rehab appearances with Detroit's Single-A affiliate, but he appears to have suffered a setback. An updated timeline for his return may emerge after he undergoes further evaluation.

Mayo is out of the lineup for Tuesday's game against the Diamondbacks, Cordell Woodland of 105.7 The Fan Baltimore reports.

It's the second straight day on the bench for Mayo, who has struggled through his first 12 games of 2026 with a .158/.273/.184 slash line and 29.5 percent strikeout rate in 44 plate appearances. Blaze Alexander is picking up another start at third base Tuesday for Baltimore.

Muncy (hand) is starting at third base Tuesday and batting fifth versus the Rangers.

Muncy exited Monday's game against the Rangers due to a bruised left hand that was the result of a hit-by-pitch. All appears well Tuesday for the third baseman, who missed only a few of innings after leaving in the top of the seventh Monday.