Klesko faces a decision whether to have surgery on his strained left shoulder, which has forced him to start the season on the disabled list. The Padres' first baseman said he'll talk with the team's medical staff, his family and manager Bruce Bochy before deciding if he should have surgery, which could sideline him for two to four months. (Updated 4/7/2006) Analysis: An MRI exam this week raised concerns whether Klesko can play with the discomfort. He said the shoulder joint basically is bone-on-bone.