(Photo credit: Matt Kartozian-USA TODAY Sports)
The surging Arizona Diamondbacks have yet to lose a start made by ace Zac Gallen since the All-Star break.
That might not bode well for the American League-leading Cleveland Guardians, who have momentarily cooled off after their own run of extended success.
Gallen will strive to help the visiting Diamondbacks to a 10th victory in 12 games and hand the Guardians a third con
