Leiter hasn’t pitched for Texas since he was placed on the injured list April 4 with a blister on his right middle finger.

The Rangers' starting rotation has been one of the best in baseball, with a 3.23 ERA entering Tuesday night’s matchup with the A’s. That number could only get better soon. Rookie Jack Leiter made a rehab start with Triple-A Round Rock on Tuesday,

Texas Rangers starting pitcher Jack Leiter (hand) will be activated off the injured list and rejoin the starting rotation on Sunday. The right-hander is scheduled to take the ball against the San Francisco Giants on Sunday.