Winker was 0 for 7 in the series before connecting for the homer in the first inning. He grounded out to end the fifth, being replaced by Shogo Akiyama.
"My hip was tightening up a little bit," Winker said. "I am fine. I'd like to see how it feels tomorrow before I say I can play."
Winker might have aggravated his hip making a diving attempt for Ronald Acuna Jr.'s double in the third.
The Reds rolled on without their No. 2 hitter vs. Atlanta, as Luis Castillo pitched seven scoreless innings at Great American Ballpark.
Castillo (3-10) permitted six hits, struck out six and walked two while improving to 2-2 with a 1.71 ERA in five June starts. The right-hander posted a 7.22 ERA through his first 11 starts of the year.
The Associated Press contributed to this report.