German Marquez starts the final game prior to the All-Star Break. He is 3-0 in his last five starts against the D-backs. When he wins he dominates, having allowed five runs in 20 innings. The Rockies will be facing Alex Young for the first time. He will be making his second big-league start and third appearance. The lefthander was the D-backs second-round draft choice out of TCU in 2015.
Good news for Marquez -- David Peralta is on the Injured List. The D-backs outfielder has a .438 career average against Marquez.