Peavy held Pawtucket scoreless for three innings before he and Knights pitching coach Richard Dotson decided he should leave the game, which was attended by 6,821 fans at Knights Stadium.
"Nothing like the day-after soreness that a pitcher gets," Peavy said afterward. "Not having had that in two months and going as hard as I did tonight, that's expected, that's a good sore. As long as there's no pain, there's no pain in the ankle. Right now, I don't expect there to be tomorrow, as well as the arm.
"I don't feel like I'm as strong as I'm going to be. I did three innings tonight. I'm a long way from going eight-nine innings," said Peavy, who came to the White Sox in a July 31 trade. Peavy was the 2007 National League Cy Young Award winner and was an All-Star in 2005 and 2007. He's the Padres all-time leader with 1,348 strikeouts.
Of his 43 pitches, some were clocked at speeds of 91 and 92 mph. He said when he's in peak form he expects to reach the mid-90s.
"I threw every pitch I had -- fastball, cutter, curveball, slider, changeup," he said. "The ball was coming out fairly good. I don't feel like I'm as strong as I'm gonna be."
Dotson said Peavy, 28, did better than he would have expected because he hasn't thrown in two months. "For the first time out, he felt pretty good about where he's at," Dotson said.
Peavy's next start will be Tuesday night against the Durham Bulls in Durham, N.C., where he expects to throw about 60 pitches. He expects to shuttle between Charlotte and Chicago, to be with his new club, during his rehab through the rest of the month. So far as joining the White Sox pitching rotation, he says his his best-case scenario is the last of August or first of September.
Peavy went 6-6 with a 3.97 ERA, one complete game, 92 strikeouts and 28 walks in 13 starts with the Padres this season.