Rosario has been promoted from High-A Hickory to Double-A Frisco, Kennedi Landry of MLB.com reports.
Rosario earned the promotion after collecting a 2.24 ERA and 129:13 K:BB over 88.1 innings between Single-A Down East and Hickory. The 22-year-old has emerged as one of the best pitching prospects in the Rangers' system.
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Rangers' Alejandro Rosario: Bumped up to High-A
Rotowire
Rosario was promoted from Single-A Down East to High-A Hickory on Tuesday.
A fifth-round selection in last year's draft out of Miami, Rosario has big-time stuff, but his 7.11 ERA and 1.63 WHIP as a junior led to him sliding in the draft. The Rangers gave him a comfy assignment to the lowest full-season level of the minors, and Rosario dominated, logging a 2.11 ERA, 0.87 WHIP and a 69:5 K:BB in 47 innings across 10 starts.
