Gonzales lasted only 3.1 innings in Tuesday's spot start against the Brewers, giving up five runs on six hits (three of them homers) and striking out two.
He didn't factor into the decision, and as the 26th man on the roster due to Tuesday's doubleheader, he's ticketed back to Triple-A, though the Cardinals haven't yet announced the move. Gonzales has looked decent in the minors this year, but the 25-year-old has yet to find much success in the big leagues.