Arizona Diamondbacks select Zac Curtis from Single-A Advanced Visalia, designate Keith Hessler for assignment

The D-backs need another bullpen arm? Must be a day ending in Y. The Arizona Diamondbacks selected LHP Zac Curtis from Single-A Advanced Visalia and designated LHP Keith Hessler for assignment, as announced by D-backs Sr. Vice President & General Manager Dave Stewart. Curtis, 23, will wear No. 62 as he makes his Major League debut, in his third professional season. In 8 games for the Rawhide this season, he was 1-0 with 2 saves, 5.23 ERA (8 R-6ER in 10.1 IP), 12 hits, 5 walks and 22 strikeouts. He held opponents scoreless in 5 games, including 2 games with 2.0 scoreless innings and 5 strikeouts and 1 game with 2.0 scoreless innings and 4 strikeouts. He held lefties to a .214 average (3-for-14) with 10 strikeouts.

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