Yu Darvish (tight quad) uncertain for Thursday

ARLINGTON, Texas -- Texas Rangers right-hander Yu Darvish has a tight right quad muscle and will see how he feels on Wednesday before it's determined if he makes his scheduled start against the Minnesota Twins on Thursday.

Darvish, 26, experienced the discomfort during a bullpen session Tuesday.

"We've got to wait until tomorrow to see how he gets through it," manager Ron Washington said.

Darvish is 12-9 with a 4.51 ERA with 172 strikeouts in his rookie year.