TUCSON, Ariz. -- The San Diego Padres lost another star Friday when slugger Phil Nevin dislocated his left shoulder.

	Nevin

Nevin, who had an MRI exam in Phoenix on Saturday, will need surgery. Manager Bruce Bochy did not know the results. He said the team won't know how long Nevin will be out until after the operation.

The left fielder was injured while making a diving catch of Brian Daubach's sacrifice fly in the fourth inning of a 2-0 loss to the Chicago White Sox and is out indefinitely.

The Padres will also be without Trevor Hoffman, their All-Star closer, for the first half of the season because of shoulder surgery.

"I'm sick to my stomach," Bochy said. "It's devastating. It started with Trevor and now Phil."

Nevin was in obvious pain as trainers from both dugouts and teammates ran to his aid in the outfield.

Nevin, who was shifted to the outfield this season, batted .306 with 41 homers and 126 RBI on 2001. He missed 35 games last season with a broken left arm and had only 12 home runs and 57 RBI.

Before this year, Nevin had not played the outfield since 1999.

He was replaced in left field by Brian Buchanan.

"Him and (first baseman Ryan Klesko) and (Hoffman) are the leaders of this clubhouse," Buchanan said. "It's tough on the whole team."

Bochy didn't even want to discuss a possible replacement for Nevin yet.

"I really don't want to speculate on things like that right now," Bochy said. "We have some options, but I don't want to go down that road until we have a chance to find things out."