Kelly is dealing with biceps tightness and is being considered day-to-day, Alex Speier of the Boston Globe reports. Kelly had to be removed from Monday's Grapefruit League game, but the diagnosis appears to be much better than initially projected. While there was some concern that it could have been a serious injury, Kelly reported that he's dealt with a similar issue before and it "usually doesn't last too long," so he should be back to game action after missing only limited time.