Rangers optioned LHP Robby Ahlstrom to Triple-A Round Rock.

The 27-year-old southpaw has really struggled in 42 appearances with the Rangers this season, posting a 6.08 ERA, 1.43 WHIP and a 34/15 K/BB ratio over 37 innings of work. He’ll continue to refine his craft at the Triple-A level for the time being.