Before his session, Garcia said that if he felt "good" during his workout he would start Friday against the Angels in Anaheim. He played long catch then pitched a lengthy bullpen, fist-pumping pitching coach Don Cooper after he was done.
There's still no official word on when Garcia will pitch again, but he seemed encouraged. He said he definitely wants to pitch again this year as he approaches free agency.
"At least one time to make everybody know there's nothing wrong with me," Garcia said. "I've got pain in my back, but shoulder-wise I'm good."
Garcia missed most of the 2008 season recovering from surgery on his pitching shoulder. This year he is 11-6 with a 4.88 ERA and has made 26 starts covering 144 innings. Garcia said he proved he was healthy enough to pitch "every five days."
Garcia said he'd like to play next season again for the White Sox, but doesn't know if he'll be back.
"I'd like to come back here, but who knows what they want?" Garcia said.
Garcia last pitched on Sept. 7 against Detroit, leaving that game after two innings with back pain.