MLB Player News

Peterson will start Sunday's game against the Phillies in Philadelphia, Laura Albanese of Newsday reports.

Peterson has surrendered nine earned runs in just 6.2 innings across his last two appearances out of the bullpen, but the Mets will nonetheless turn to him to fill the open spot in their rotation in the series finale. The Phillies have turned in a weak .670 OPS across their last 10 contests, but the 30-year-old southpaw's recent performance puts a low ceiling on his fantasy appeal.

The Athletics recalled Hartlieb from Triple-A Las Vegas on Saturday, Martin Gallegos of MLB.com reports.

With Mark Leiter (hip) headed for the injured list, the A's will turn to Hartlieb to plug the hole in their bullpen. The 32-year-old righty has spent the entire season at Las Vegas, posting a 3.48 ERA and 1.39 WHIP across 33.2 innings in the hitter-friendly Pacific Coast League. He's likely set for middle-relief work as long as he's in the majors.

The Athletics placed Leiter on the 15-day injured list Saturday, retroactive to Thursday, due to a right hip impingement, Martin Gallegos of MLB.com reports.

Leiter has given up just one earned run in his last 14 innings, but the A's will be without his services for at least a couple of weeks while he recovers from a hip injury. Geoff Hartlieb was recalled from Triple-A Las Vegas to replenish the team's bullpen depth.

The Diamondbacks recalled Abner from Triple-A Reno on Saturday.

Abner will return to the big leagues to replace Michael Soroka, who landed on the injured list Saturday with a glute strain. Abner has given up seven earned runs in just 3.2 innings with the big club this season and will likely be limited to low-leverage situations while in the majors.

The Yankees optioned Bird to Triple-A Scranton/Wilkes-Barre on Saturday, Bryan Hoch of MLB.com reports.

Bird pitched scoreless innings in both Friday's and Saturday's contests, lowering his ERA to 4.88 through 24 innings on the season. He'll now end up as the roster casualty necessary to create space in preparation for Elmer Rodriguez's promotion Sunday. Bird is likely to return to the Bronx at some point this season when the Yankees need a fresh arm in the bullpen.

Palencia was diagnosed with a mild flexor strain in his right arm Saturday, Jesse Rogers of ESPN.com reports.

Manager Craig Counsell said that Palencia will be shut down from throwing for about a week, at which point the team will re-evaluate him. A clearer timeline for his return to the bullpen may emerge once he's cleared to begin a throwing program. In the meantime, Caleb Thielbar, Jacob Webb and Phil Maton all could be in the mix for saves.

Santos (adductor) allowed one earned run on two hits and one walk while striking out one over one inning during the ACL Giants' 7-4 loss to the ACL Athletics in the rookie-level Arizona Complex League on Friday.

Triple-A Sacramento placed Santos on its 7-day injured list May 26 with a right adductor strain, and he returned to action in Arizona. The 26-year-old right-hander gave up two singles while throwing 16 of his 20 pitches for strikes. He has spent most of the season at Triple-A, where he owns a 4.50 ERA, 1.50 WHIP and 10:7 K:BB across 14 innings in 12 appearances.

The Blue Jays optioned Little to Triple-A Buffalo on Saturday.

Little joined the big-league roster Friday, but he'll be sent right back to the minors after giving up four earned runs in one inning during Friday's blowout loss to the Cubs. Lazaro Estrada (shoulder) was activated from the 60-day IL in a corresponding move.

The Blue Jays reinstated Estrada (shoulder) from the injured list Saturday.

Estrada has been on the shelf since April due to a right shoulder impingement. He was cleared to begin pitching in rehab games June 2 and has since allowed four earned runs in 9.2 innings across four appearances at Triple-A Buffalo. Now fully healthy, he'll presumably work as a long-relief option for the big club. Brendon Little was optioned to Buffalo in a corresponding move.

Svanson has yielded just one hit and has a 6:1 K:BB over eight scoreless innings since being recalled from Triple-A Memphis.

Svanson was optioned to Memphis in May after posting an 8.77 ERA and 26:15 K:BB over 25.2 innings. He tossed 5.2 scoreless frames at the Cardinals' top minor-league affiliate and has carried that momentum over in his return to the majors. Svanson has been used mostly in low-leverage situations since being recalled, but with the way he's pitched he could move back up in the bullpen hierarchy.