ARLINGTON -- The Rangers activated pitcher Koji Uehara off the disabled list and optioned pitcher Tanner Scheppers back to Triple-A Round Rock on Sunday. Scheppers was 1-0 with a 4.56 ERA in 29 games for the Rangers since being called up on June 7. He had a 1.23 ERA in his last 18 games.
Manager Ron Washington said Scheppers will be back in September when the rosters expand to 40 players.
"Scheppers certainly made a good impression," Washington said. "But he has options. He's a piece that we certainly will have in the bullpen as we move forward into the future. He did a great job. He really did."
The decision came down to Scheppers or Michael Kirkman. But the Rangers wanted Kirkman as their second left-hander in the bullpen behind Robbie Ross.
"Hopefully he can throw the ball over the plate because his curve ball can play big time," Washington said of Kirkman.
Uehara has been sidelined since June 10 with a strained muscle in his right rib cage. He had a 2.11 ERA in 20 appearances before going on the disabled list and pitched a pair of scoreless innings without problem for Round Rock on Tuesday and Friday.
"I only have one month left in the regular season, so I'm hoping I can enjoy the rest of the season," Uehara said. "It all depends on the mental side of the game. As long as I'm confident, I feel like I will be at my best."