Peavy will make Sox debut Saturday

BOSTON -- Jake Peavy will make his Boston Red Sox debut Saturday against the Arizona Diamondbacks at Fenway Park, Sox manager John Farrell announced on Thursday.

Peavy, who will wear No. 44, has been officially added to the Red Sox roster. The veteran right-hander will throw a side session Thursday in preparation for the start.

“He’s excited and he’s looking forward to the challenge and the opportunity here,” said Farrell, who spoke with Peavy when he arrived at the ballpark Thursday. “He’s excited to be here in Boston.”

Starting Peavy on Saturday gives Farrell the ability to split up left-handers Jon Lester and Felix Doubront.

The Red Sox acquired Peavy on Tuesday as part of a three-team, seven-player trade that included trading infielder Jose Iglesias to the Detroit Tigers. Peavy’s presence gives Boston’s rotation more stability, while fellow starter Clay Buchholz (neck strain) continues to rehab in hopes of returning at some point this season.

To make room for Peavy, the Red Sox optioned right-handed reliever Jose De La Torre to Pawtucket. Given the Sox’s 15-inning marathon win over the Seattle Mariners on Wednesday night at Fenway, Boston also optioned pitcher Brandon Workman to Pawtucket and recalled pitcher Steven Wright.

Workman, who has made three starts for the Red Sox, was scheduled to move to the bullpen with the addition of Peavy, but would not have been available in relief until Sunday after starting Tuesday’s game.

“It’s a unique set of circumstances that we had to make two roster moves,” Farrell said.

If Thursday’s starter Ryan Dempster ran into trouble early in the game, the Red Sox needed a pitcher that could be stretched out, so that’s why Wright is here.

Prior to the Red Sox making the roster moves, Farrell spoke with Workman and explained the situation.

“He’s aware of that,” Farrell said. “Unfortunate circumstances [Wednesday] night takes him off the roster but he understands the reason why.”

The earliest he’ll be back on the mound for the Triple-A PawSox will be Sunday in a bullpen role. He will work multiple innings as a reliever for Pawtucket in order to remain stretched out.