"One time he would mention that he felt something, then the next time he wouldn't," Sandberg said. "It really would come and go. His bullpens were solid, no complaints there … and the results were there right to the end. That said, maybe it's on the mild side. Maybe it was caught and a short-term thing. It was something that didn't affect his starts whatsoever. I'm being optimistic."
But even if it's just a two- or three-week DL stint, Lee might have to change a few things to stay healthy.
"He's a little bit old school where he doesn't do a lot of icing or things afterward," Sandberg said. "The last two or three weeks he's done some maintenance things that seemed to help, but other than that, I don't think he's done a lot of that. He has a basic routine. Maybe he has to change his routine a little to take care of himself at this stage of his career."
Todd Zolecki is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.