But Moscot retired the last seven batters he faced, and 11 of the final 12 to finish strong.
"When you get out on that mound and you have a third deck in the stadium, it takes over a little bit," Moscot said. "I wasn't pitching my game that first inning, I just normally attack hitters and I was trying to be too fine."
Moscot was called up on Friday to replace originally scheduled starter Raisel Iglesias, who was put on the 15-day disabled list with a strained left oblique.