D-backs turn to Zac Gallen in series opener vs. Pirates

(Photo credit: Mark J. Rebilas-USA TODAY Sports)
Zac Gallen will take the mound for the last time before the All-Star Game when the Arizona Diamondbacks host the Pittsburgh Pirates on Friday in the opener of a three-game series in Phoenix.

The Arizona ace is enjoying a standout season and is being mentioned as the possible starter for the National League in the Midsummer Classic after Los Angeles Dodgers star Clayton Ker