MLB Player News

The Red Sox placed Mayer on the 10-day injured list Friday with a stress reaction in his left forearm, Mac Cerullo of the Boston Herald reports.

Interim manager Chad Tracy said that Mayer's injury is something that he's been dealing with for a while, so the team will place him on the IL to allow him to heal properly. Tsung-Che Cheng will come up from Triple-A Worcester to fill the open roster spot and is likely to receive a handful of starts while Boston also navigates injuries to Isiah Kiner-Falefa (forearm) and Nick Sogard (oblique).

Simpson is not in the starting lineup for Friday's game against Arizona, Marc Topkin of the Tampa Bay Times reports.

Simpson will ride the bench for the series opener despite recording at least one hit in six of his last seven games, and even with the Diamondbacks starting a righty in Zac Gallen. Victor Mesa will replace Simpson in left field and bat seventh Friday.

Sanoja is absent from the lineup for Friday's game in St. Louis.

Sanoja leads the Marlins with 36 starts at third base this season, but this is his second straight game out of the lineup and his fourth absence over the last five games versus righties. Graham Pauley was recalled from Triple-A Jacksonville and is getting the call at the hot corner Friday.

Kreidler is out of the lineup for Friday's game against the Rockies.

Kreidler will hit the bench Friday after he went a collective 8-for-19 with a triple, a walk, six RBI and three runs while starting in the Twins' past five games. A lifetime .184/.257/.278 hitter in the big leagues, Kreidler's recent hot stretch at the plate is likely just a blip on the radar, but he could play ahead of Tristan Gray at shortstop more often than not until his bat cools.

Hernandez is not in the lineup for Friday's contest in St. Louis.

Hernandez started each of the previous three games -- including two versus righties -- but the right-handed hitter will begins Friday's series opener on the bench. Esteury Ruiz is in left field for the Marlins.

Kirk is out of the lineup for Friday's game against the Rangers.

Kirk will get a break Friday after he went 1-for-7 at the plate while catching 18 innings over the past two days. Brandon Valenzuela will step in at catcher for Kirk and will bat eighth.

Williams (elbow) will begin a rehab assignment with Single-A Fredericksburg on Sunday, Mark Zuckerman of NatsJournal.com reports.

Williams is finally ready to pitch in games again following last July's internal brace procedure on his right elbow. The veteran right-hander will likely need most, if not all, of the allotted 30 days a pitcher receives on a rehab assignment, but he should be ready to rejoin the Nationals' active roster sometime in July.

Jobe (elbow) will throw live batting practice Saturday, Chris McCosky of The Detroit News reports.

Jobe will continue his rehab at the Tigers' facility in Lakeland, Fla. He's already thrown handfuls of bullpen sessions and will now progress to facing live hitters this weekend, as the right-hander works his way back from Tommy John surgery. Jobe has a good chance to pitch for Detroit in the second half of the season.

Lee is out of the lineup for Friday's game against the Astros.

Though Zach McKinstry will cover second base Friday, Lee appears to have emerged as the Tigers' primary option at the keystone since Gleyber Torres aggravated a left oblique injury June 15 and landed back on the shelf. Lee had started at second base in eight of the Tigers' previous nine games, going 9-for-26 (.346 average) with two doubles, two runs and one RBI over that span.

The Tigers transferred Perez (orbital) to the 60-day injured list Friday.

With the team claiming Yilber Diaz off waivers from the Diamondbacks, Detroit needed to open a spot on the 40-man roster. Perez will miss a couple months at minimum after he sustained a left orbital fracture in pregame warmups June 16.