"It helped out a lot," Frazier said of having Saturday off. "I was ready to pinch-hit there at the end but never had the opportunity. It felt great to get some good treatment. I'm ready to go."
It was Frazier's first off-day of the season after he played the first 23 games. Only Joey Votto and Brandon Phillips have played every game for Cincinnati this season.
Frazier had no concerns about exerting himself or aggravating the injury, especially from running and possibly trying to take an extra base if needed.
"I think everything will be good," Frazier said. "If I'm playing, I'm going to give it 100 percent. I don't see any signs of setback."
Reds manager Bryan Price removed Frazier on Friday but felt he could have kept playing, if needed. Neftali Soto started in Frazier's place on Saturday.
As for playing Frazier on Sunday, there were no worries.
"I don't think he's 100 percent. But he's certainly good enough to play," Price said. "We feel like there's a very low risk of making the situation worse by playing."
Mark Sheldon is a reporter for MLB.com. Read his blog, Mark My Word, and follow him on Twitter @m_sheldon. This story was not subject to the approval of Major League Baseball or its clubs.