The Rangers recalled Ahlstrom from Triple-A Round Rock on Monday.
Just four days after being sent down to Round Rock, Ahlstrom is back with the big-league club. His numbers with Texas this season include a 3-1 record, 6.03 ERA, 1.37 WHIP and 28:10 K:BB over 31.1 innings. The Rangers placed Peyton Gray (elbow) on the 15-day injured list, freeing a spot on the active roster for Ahlstrom.