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7/24/2014 3:10 P.M. ET

A's recall Scribner to reinforce weary bullpen

OAKLAND -- After a 12-inning contest on Tuesday and a grueling eighth inning on Wednesday, the A's bullpen was in serious need of some relief. Evan Scribner is here to provide it.

Oakland recalled Scribner from Triple-A Sacramento on Thursday, as Jim Johnson was designated for assignment.

Scribner's flight was scheduled to land at 11:30 a.m. PT, and he will be available to pitch in Thursday's rubber match against the Astros.

"We always keep close tabs on Scrib," manager Bob Melvin said. "He's not here all the time, but he is a part of this team."

The 29-year-old right-hander was on the A's Opening Day roster and made two appearances before being optioned. He was with the team again from June 17-20 but did not see any action.

In 37 2/3 innings with Sacramento, Scribner has a 3.35 ERA and an eye-opening 57 strikeouts versus seven walks.

Aside from Scribner, the only members of the A's bullpen who did not pitch both Tuesday and Wednesday are lefties Eric O'Flaherty and Fernando Abad.

Thumb sprain keeps Cespedes out of lineup

OAKLAND -- Yoenis Cespedes sprained his right thumb on Wednesday and was not in the A's lineup on Thursday, but manager Bob Melvin said there is a good chance that Cespedes will start Friday in Texas.

Cespedes hit two homers in the A's 9-7 victory Wednesday and matched a career high with five RBIs before hurting his thumb as he fell to the ground on a fifth-inning swing. He stayed in left field for a half-inning and then departed to get X-rays, which were negative.

"The swelling was minimal, it was just more the soreness in the joint," Melvin said. "But they got him ready to go."

The left fielder's breakout performance on Wednesday snapped a 25-game homerless drought and lifted his season totals to 16 home runs and 61 RBIs.

Worth noting

• According to Melvin, the tentative plan for Alberto Callaspo (right hamstring strain) is for him to play in a rehab game Saturday and possibly join the A's in Texas on Sunday, the first day he is eligible to come off the disabled list.

Aaron Leibowitz is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.