MLB Player News

Marsh (hamstring) will resume his rehab assignment with Triple-A Lehigh Valley on Thursday, Scott Lauber of The Philadelphia Inquirer reports.

Marsh suffered a cramp in his right hamstring at Lehigh Valley on Sunday, which is the same hamstring in which he suffered the strain that sent him to the injured list. However, after three days of rest, Marsh will play Thursday and Friday before being evaluated for a potential return to the Phillies' active roster.

The Cubs optioned Cosgrove to Triple-A Iowa on Wednesday, Taylor McGregor of Marquee Sports Network reports.

Cosgrove made one appearance during his brief time with the Cubs, tossing two scoreless innings. His roster spot is being absorbed by Chris Flexen.

Arenado is not in the lineup for the second game of Wednesday's doubleheader in Cincinnati.

After going 0-for-5 in the first game of the twin bill, Arenado will receive some rest for the nightcap. Nolan Gorman is at third base and batting sixth in the second game for the Cardinals.

The Reds selected Petty's contract from Triple-A Louisville ahead of his scheduled start Wednesday against the Cardinals in the second game of a doubleheader.

Cincinnati is designating Petty as its 27th man for the twin bill, so he's expected to be returned to Louisville once the doubleheader concludes. The 22-year-old righty will be making his MLB debut Wednesday after turning in a 3.52 ERA, 1.30 WHIP and 27:9 K:BB across 23 innings over his first five starts of the season at the Triple-A level.

The Cubs transferred Assad (oblique) to the 60-day injured list Wednesday, Maddie Lee of the Chicago Sun-Times reports.

The move frees up a spot on the 40-man roster for Chris Flexen, whose contract was selected Wednesday. Assad suffered a setback with his left oblique last week and will be shut down for a while.

The Cubs selected Flexen's contract from Triple-A Iowa on Wednesday, Maddie Lee of the Chicago Sun-Times reports.

Flexen altered his arm slot before posting a 1.16 ERA and 21:8 K:BB over 23.1 frames covering five starts with Iowa. The righty will work as a long reliever for now, but making starts at some point this year is possible if he pitches well.

Gonzalez is out of the lineup for Wednesday's game against the Giants.

Gonzalez is on the bench for the second straight game, and his time as a regular in the San Diego lineup appears to have come to an end with the recent returns of Luis Arraez and Jason Heyward from the injured list. The 27-year-old Gonzalez should be able to maintain steady playing time against left-handed pitching, filling the short side of a platoon either with Heyward in left field or with Gavin Sheets at designated hitter.

Ornelas is out of the lineup for Wednesday's game against the Giants.

Ornelas will hit the bench for the second day in a row, and his brief run as a regular in the San Diego lineup has likely come to an end with the recent returns of Luis Arraez and Jason Heyward from the injured list. The left-handed-hitting Heyward is unlikely to start against most left-handed pitchers, but since Ornelas also bats from the left side, the Padres are more likely to turn to the right-handed-hitting Oscar Gonzalez to serve as a platoon mate for Heyward.

Diaz will start at catcher and bat ninth in Wednesday's game against the Giants.

Diaz and Martin Maldonado have now made 15 starts apiece behind the plate through the Padres' first 30 games of the season, but the former offers more offensive upside at this stage of his career and could eventually recapture the lion's share of the playing time at catcher. The Padres will hand Diaz his second straight start after he brought his season average up to .192 with a 2-for-4 performance in Tuesday's 7-4 win.

Maldonado is out of the lineup for Wednesday's game against the Giants.

Maldonado will hit the bench for the second day in a row while Elias Diaz picks up another start behind the dish. The playing time at catcher had been tilting in Maldonado's favor in recent weeks, but Diaz brings more offensive upside to the table and showed signs of breaking out of his season-long funk at the plate Tuesday, when he went 2-for-4 with a run scored in the Padres' 7-4 win. Maldonado could see his opportunities take a hit if Diaz is able to build on Tuesday's performance.