OAKLAND -- The A's promoted right-handed reliever Dan Otero, a former Giants draft pick and long man, from triple-A Sacramento and optioned lefty reliever Hideki Okajima to the River Cats on Friday.
To make room for Otero on the A's 40-man roster, Oakland transferred left-handed starter Brett Anderson (sprained right ankle/right foot fracture) to the 60-day disabled list.
At Sacramento, Otero was 1-0 with a 0.99 ERA in 27 1/3 innings, over 23 games. He has allowed 14 hits while striking out 22 batters and walking just one. Opposing batters are hitting .147 against him.
"I'd like to think I wasn't doing anything differently, but I was getting results," Otero said about his stint in Sacramento. "Once you get that sense of comfort, it backfires."
Otero, 28, also converted all 15 of his save opportunities for Sacramento, though he's not exactly sure of what his role will be with the A's.
"I'm one of seven relievers," Otero said with a smile, "and whenever my name's called, I'll go in and do my job."
Otero, who was selected off waivers by the New York Yankees from the Giants on March 26 and then selected off waivers by the A's from the Yankees on March 27, saw a couple of familiar faces in the A's clubhouse upon arriving Friday. He was college teammates at Duke with Nate Frieman and bullpen mates in Sacramento earlier this year with Jesse Sanchez.
So if you're keeping score, yes, the A's have a couple of Dukies on their roster.
"We're known for basketball, not baseball," Otero said.
Otero said he watched the A's 18-inning marathon Thursday in the visiting clubhouse in Reno, where the River Cats were playing the Aces. So when he was asked what he might bring the A's in the immediate aftermath of a game in which the A's used six relievers, Otero said he could go three or four innings.
"Or 5 2/3," he said, nodding his head toward Chavez's locker.
"Then he's got the right frame of mind," said A's manager Bob Melvin.
As far as Brett Anderson is concerned, the stress fracture in his right foot has yet to heal so he remains in a walking boot for the foreseeable future, which is why he was moved to the 60-day D.L.
"Given everything," said A's general manager Billy Beane, "it was going to go past (60 days) anyway."
Anderson Tweeted: "Who needs bones anyway…screw you foot."