MINNEAPOLIS -- J.J. Putz exited Thursday's 11-0 victory over the Twins with what the reliever described as patella inflammation in his right knee.
Putz literally walked off the field in the eighth inning after walking Michael Cuddyer, departing just one batter after White Sox manager Ozzie Guillen and head athletic trainer Herm Schneider came to the mound to check on him.
"Yeah, I felt like I could get through the inning," Putz said. "It just didn't feel mechanically that I could push off. That's when I walked off.
"It didn't feel like I could push off and drive. I figured it was better to stop then."
According to Putz, he tweaked the knee while playing catch on Wednesday but didn't think it was that big of a deal.
"When I got out there and really tried to push, I wasn't able to," Putz said. "The doctor checked it out and structurally everything felt strong. It's a little inflammation under the patella. Some anti-inflammatory [medication] should calm it down.
"I don't think it's a huge deal. It probably could have been had we not shut it down when we did."
While Putz is listed as day-to-day, Bobby Jenks appears to have returned to his closer's role. He pitched the ninth on Thursday, striking out two.
"He threw the ball well today," Guillen said. "We're going to count on him."