Banda, 23, has posted a 4.96 ERA, 1.42 WHIP and 76:40 K:BB over 78 innings with Triple-A Reno this season.

Banda's 40 walks are the third-most in the Pacific Coast League this season, and that poor control will likely continue to delay his arrival to the big leagues. The lefty is still one of the better pitching prospects in a poor Diamondbacks system, but his stock has nonetheless dropped from where it was to begin the campaign.

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