ANAHEIM -- The A's have long intended to go with a six-man rotation in the season's final month in an effort to save some of their young arms, and manager Bob Geren on Thursday said the extra man likely will be Edgar Gonzalez.
Gonzalez, Oakland's long reliever for most of the season, is expected to make his third start of the season on Tuesday against the Royals at Oakland-Alameda County Coliseum.
"It depends on if and how we need to use him [in relief] here," Geren said before the opener of a four-game series at Angel Stadium. "But right now, that's the plan."
Gonzalez, who was brought to Spring Training to compete for a starting job but opened the season at Triple-A Sacramento, was called up May 19 and made two starts, going 0-1 with a 5.40 ERA.
His past 18 outings have come out of the bullpen, with an ERA of 5.20.
Geren said Gonzalez threw a 45-pitch side session in the bullpen at Seattle on Thursday and noted that an appearance in Anaheim wouldn't rule him out as Tuesday's starter.
Mychael Urban is a national writer for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.