There are no secrets in baseball. But there's plenty of mystery.

Heading into Friday night's game against the Dodgers, White Sox left-hander Mark Buehrle was hoping he would have the edge against a team he never has faced.

"They've never seen my cutter," he said. "If it's working, hopefully it will break some bats and get some soft groundballs. I think it's an advantage to me, but we'll have to see."

Buehrle figured to have success against a team batting just .250 and scoring 3.6 runs per game, fewest in the National League.

"You can't go in there thinking their offense is struggling," Buehrle said. "Once you do that, you're going to leave stuff over the middle of the plate and anyone can hit it. I'll try to attack them like I've done the last couple of starts."

Buehrle did his part, but once again he received little support from the Sox offense in a 2-1 loss.

Buehrle allowed just two runs on four hits in six innings. He struck out six and walked none. But he extended his winless streak to a career-high 11 games. His last victory came April 10 in Cleveland.

"We just haven't played well behind him or hit well," manager Jerry Manuel said.

The Sox took a 1-0 lead in the first Friday after Jose Valentin walked, advanced to third on Frank Thomas' double and scored on a Magglio Ordonez ground ball.

Thomas extended his season-best hitting streak to nine games. He has driven in nine runs in that span.

Brian Jordan homered for Los Angeles in the second inning, and Paul Lo Duca's RBI single in the third proved to be the difference.

Dodgers left-hander Kazuhisa Ishii (5-2) allowed four hits in seven innings, striking out nine. Eric Gagne pitched a perfect ninth for his 21st save.

Manuel said Thomas' hot bat "could help us a lot because he comes up with a lot of men on base. If Magglio also gets going, it could be the start of something."

Second opinion

Manuel kept second baseman D'Angelo Jimenez out of the lineup for a second straight night.

Tony Graffanino, who went 2-for-5 Thursday, got the call against Ishii.

"We'll give him a chance to get a run going for us," Manuel said.

Graffanino went 0-for-4 Friday.

He's No. 1