"White Sox reliever J.J. Putz admitted he should have listened to manager Ozzie Guillen and not tried to pitch through the discomfort in his right knee that made him unavailable Friday night at Kansas City.

"I probably should have listened to Ozzie and shouldn't have tried to pitch through it for another at-bat," said Putz, who walked off the field after walking the Twins' Michael Cuddyer in the eighth inning of the Sox's 11-0 victory Thursday. "But it's just not our nature (as relievers)."

Putz also revealed that he had surgery on his right knee 11 years ago.

"It's nothing I'm concerned about," said Putz, who said his knee felt fine Friday after playing catch. "It's just a scare. Something didn't feel right."

Guillen said Bobby Jenks probably would regain his closer duties after pitching one perfect inning Thursday. Jenks had missed a week because of back spasms."