MINNEAPOLIS -- White Sox closer Bobby Jenks, who missed the weekend series against the Tigers with a sore back, threw in the bullpen Tuesday afternoon at Target Field and said that he will be available to pitch starting with Wednesday night's game against the Twins.
"I'm good to go," Jenks said.
In Jenks' absence, the White Sox lost two of three to the Tigers with fill-in closer J.J. Putz suffering both losses.
Jenks said that he had felt a constant tightness in his back, "like a cramp that wouldn't release."
Also Tuesday Twins first baseman Justin Morneau took batting practice on the field. Morneau, who is trying to come back from a concussion, didn't sound encouraged.
"It feels good when I wake up in the morning," Morneau said. "As the day goes on, it doesn't feel as good."
It's still uncertain when or whether Morneau will return this season.