The Astros shuffled their bullpen Sunday by sending Dallas Keuchel back to Oklahoma City and calling Brett Oberholtzer up to Houston.
Keuchel started the season in Oklahoma City, but was called up to Houston when Travis Blackley went on the disabled list. He was 0-0 with a 3.86 ERA in four appearances for the Astros.
Oberholtzer, who was acquired by the Astros in the Michael Bourn trade with Atlanta, was 0-2 in three starts for Oklahoma City with a 3.86 ERA. His last start for the RedHawks was Tuesday so he is available to pitch several innings of long relief Sunday if needed.
The call-up is the first for Oberholtzer.