A's manager Bob Geren said his club has a plan in place for which players will be recalled, and he said it'll likely be only pitchers getting called up in the first wave.
"We'll definitely have some pitching primarily," Geren said on Sunday. "We're talking about pitching 99 percent right now."
Geren, though, said he hasn't ruled out bringing up an outfielder such as Travis Buck or Aaron Cunningham, even though Eric Patterson was recalled from Triple-A Sacramento on Friday.
"I don't have a need for anything but pitching right now, but I'm not saying we won't," said Geren of bringing up an outfielder.
The A's plan on only calling up pitchers already on the 40-man roster, meaning Chad Reineke, Clayton Mortensen, and Jerry Blevins are candidates.
All three have appeared with the A's at various points this season. Blevins has made five appearances, while Reineke and Mortensen made one start each for Oakland.
Blevins is 5-3 with a 3.77 ERA in 44 appearances with Sacramento this season. He had a 12.46 ERA in five appearances in the big leagues this year.
Reineke is 8-4 with a 4.49 ERA in 28 games, including 20 starts, with the River Cats. He made a start with the A's on Aug. 5 against the Rangers, allowing four runs on seven hits over five innings.
Mortensen, who was part of the trade that sent Matt Holliday to the Cardinals, has been used exclusively as a starter in Triple-A. Mortensen has a 9-8 record and a 4.39 ERA in 23 games. He also started for Oakland on Aug. 8, when he allowed eight runs on eight hits over four innings against Kansas City.
Rhett Bollinger is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.