Jeff Niemann (fibula, hand) hopes to throw a bullpen session Tuesday. Niemann left a rehab start on Saturday after being hit in the right hand by a line drive, but X-rays came back negative and he said Monday that he's feeling much better. It shouldn't be much longer before he's ready to return to game action. The 29-year-old right-hander originally landed on the disabled list in mid-May with a broken fibula.