Kim's season may be over

BOSTON -- The end of Byung-Hyun Kim's season could be near.

Kim informed the Red Sox that his shoulder was too sore to pitch in Game 3. He also sat out Sunday's game with soreness, and never reported to the bullpen.

"He said he felt some tightness in his shoulder (Saturday night)," Red Sox manager Grady Little said. "That's why we got (Scott) Williamson up right away and got him in the game. (Kim) was having a little trouble getting loose, so we switched."

The switch could last the rest of this season. If the Sox advance to the American League Championship Series, there's a strong possibility Kim would be left off the roster. Even before Kim was unable to pitch Sunday, Williamson's strong outing in Game 3 (he pitched a perfect 11th inning with two strikeouts) loosened Kim's hold on the closer's job.

"It's kind of like we were on Opening Day," Little said. "We have the availability of different people there. We're very impressed with the job Willie did, and we'll have (Tim) Wakefield and (Derek) Lowe down there (today). We'll do whatever we have to do to get the job done."