Diamondbacks' Carlos Vargas: Sent to Triple-A

Arizona optioned Vargas to Triple-A Reno on Wednesday.

Vargas has loads of upside as a late-inning relief arm, but he's struggled this season with a 5.79 ERA and 7:4 K:BB over 4.2 innings. He'll try to get on track at Reno before getting another look with the big club.