Rajai Davis gets day off

Center fielder Rajai Davis was out of the A’s lineup Friday, a day after experiencing left hamstring tightness while running the bases.

There was no plan to put Davis on the disabled list — the A’s are hoping he’ll miss only a day or two — but Matt

Olson was recalled from Triple-A Nashville for bench depth.

Considered an above-average defensive first baseman, Olson also will be available to play right field, where last year he had 80 starts with Nashville and four with Oakland.

Olson gives the A’s four bench players. He took the roster spot of pitcher Cesar

Valdez, who made a spot start Thursday and was optioned to Nashville.

“We won’t really know until he gets out on the field,” manager Bob Melvin said of Davis, “but he’s going to be a little bit sore. He’s had some of these injuries before, and he can guard it like he did last night. Just that last at-bat it kind of grabbed on him a little bit.”

Olson was hitting .216 with two homers in 14 games for Nashville. He made his majorleague debut in September and went 2-for-21.

Graveman to face Angels: Right-hander Kendall Graveman is on target to come off the 10-day disabled list and start in Anaheim during the three-game series that opens Tuesday, the day he can be activated. Graveman threw a bullpen session Friday.

“That’s everything we were looking for out of him,” Melvin said.

Graveman would miss just one start, which Valdez took, his first big-league appearance since 2010.

Briefly: The A’s fired Jim Leahey, who was in his 11th season as vice president of sales and marketing. Jim Wilson, who oversaw food services, also was let go. No immediate replacements were named. It was the latest front-office shakeup for a team that has expressed a recommitment to Oakland . ... Right-hander

Chris Bassitt (Tommy John surgery) will throw 45 pitches in a simulated game in Arizona on Monday. … Reliever

John Axford (shoulder) isn’t throwing yet and isn’t close to returning.