Diamondbacks' Tyler Wagner: Placed on 7-day DL

Wagner was placed on the 7-day DL at Triple-A Reno on Sunday.

It's not clear what's ailing Wagner, who most recently started Friday, tossing five innings and surrendering two runs. The 25-year-old owns a 3.04 ERA and 1.52 WHIP across 26.2 innings at Reno this season.