Manager Robin Ventura had suggested Putnam might need a short Minor League injury rehab assignment before returning to the White Sox. But Putnam sounded as if that assignment might not be needed.
"With the way I feel physically, if I had to get in there tomorrow, I think I'd be OK," Putnam said. "It's just a matter now of fine-tuning, having not thrown for a week, trying to shake the rust off a little bit."
Putnam plans to add some cutters to Sunday's bullpen session, with his split-finger being the last pitch incorporated.
Scott Merkin is a reporter for MLB.com. Read his blog, Merk's Works, and follow him on Twitter @scottmerkin. This story was not subject to the approval of Major League Baseball or its clubs.