Cincinnati manager Bryan Price said after the game that Phillips injured the heel on a swing during his at-bat in the third inning, when on his backswing his bat hit the heel.
"He did not want to come out of the game and I made that decision because I did get a chance to see him play a little bit on defense with it and tried to get a pad on there," Price said. "And he didn't want to look at me; he didn't want it to happen, but I just felt like it was smart. We could get started on the treatment, get an X-ray, take a look at things, and hopefully there will be a lot of progress made between now and tomorrow's game."
Phillips was 0-for-2 before leaving the game and is batting .274 with 19 doubles, five home runs and 33 RBIs this season. Sunday's game marked his 1,276th for the Reds, tying him with Ron Oester for 13th-most in franchise history.
Manny Randhawa is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.