Phegley -- who also homered in the fifth -- delivered, and after Texas reliever Keone Kela gave up a double to Marcus Semien, Gonzalez was charged with six runs and took the loss.
Gonzalez attributed his struggles to a lack of command. After a clean first two innings, Gonzalez had trouble with his two-seam cutting rather than sinking the way he wanted, and he started falling behind in counts.
"I started nitpicking and not really attacking the glove, trying to go around it," Gonzalez said. "Just trying to hit the plate. But yeah, I've got to attack more hitters in those situations and hopefully they get themselves out."
The loss was Gonzalez's first bad outing in the Majors. He entered Tuesday with a 0.90 ERA in four starts, the lowest through any pitcher's first four starts since Atlanta's Kyle Davies had a 0.77 mark in 2005.
"Yeah, it was a grind," Gonzalez said. "I struggled, as you could tell."
Suddenly, the narrative surrounding Gonzalez is no longer how long he can keep his run of success going. It becomes how he can respond now that the run is over.
Gonzalez, though, has a simple solution.
"Don't repeat that," he said. "Just look at my success and not reflect on the negative as much."
Cody Stavenhagen is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.