The Rangers placed Jeffress on the 10-day disabled list Thursday with a lower-back strain, Stefan Stevenson of the Fort Worth Star-Telegram reports.

EDGE Analysis

The right-hander has been pitching decently in a setup role, but he'll need time off. He reportedly started to feel the injury after throwing a pitch Tuesday, and it worsened enough to warrant this move. Texas called up Preston Claiborne to fill Jeffress' spot.