The Rangers recalled Collyer from Triple-A Round Rock on Wednesday,
Collyer replaces Winston Santos in the Texas bullpen after spending the past two-plus months in the minor leagues. The right-handed Collyer made 23 relief appearances with the big club from mid-April to mid-July, posting a 5.09 ERA, 1.48 WHIP and 22:19 K:BB in 23 innings.