Cory Burns is headed back to Triple A Round Rock.
Burns, a right-handed reliever, was called up last Thursday when Alexi Ogando went on the disabled list. He allowed two runs over 3 2/3 innings over three appearances. He had a 1.38 ERA in 14 outings with the Express when he was called up.
The move cleared a roster spot for today's spot starter Ross Wolf, a 30-year-old right-hander seeing his first big-league action since 2010. Wolf has gone 1-2 with a 2.02 ERA over seven games, including six starts, with Double A Frisco and Round Rock this season.
Wolf has 25 relief appearances in the big leagues, but today marks his first start.
With those moves, the Rangers have a full 40-man roster.
The decision leaves the Rangers with four left-handers in the bullpen -- Joseph Ortiz, Michael Kirkman, Robbie Ross and Neal Cotts.
Ortiz, like Burns, has options remaining, but Rangers manager Ron Washington said: We're not ready to go there yet."
Here are a few other pregame notes:
* The Rangers' next rotation decision will come as to who starts the other game in Monday's doubleheader in Phoenix. Yu Darvish is slated to start the first game, and Ross Wolf, Josh Lindblom and Martin Perez appear to be the top candidates to start the other games.
* Mitch Moreland was given a day off today, as Ron Washington wanted to get his first baseman consecutive days off.
-- Drew Davison