Rangers starting pitcher Yu Darvish is still on track to start Friday against the Mariners after leaving his last start with a blister on his pitching hand.

"It's doing well," Darvish said through an interpreter, per MLB.com.

Manager Ron Washington isn't concerned about Darvish.

"I looked at [Darvish's] hand, and he was smiling," Washington said. "It's amazing how skin heals."