Marquez (10-7) took the loss against the Diamondbacks on Wednesday, allowing four runs on 11 hits over 3.2 innings while striking out only one.
The 22-year-old didn't have a feel for his breaking pitches, forcing him to rely on a fastball that Arizona hitters quickly began squaring up. Perhaps the only silver lining to this outing was the fact that Marquez kept the ball in the park, the first time he hasn't allowed a homer in his last seven starts. He'll get a much better matchup in his next outing Tuesday on the road against the Giants.