Williams had allowed four runs to score in the first inning when he uncorked a wild pitch to David Lough, which went toward the Phillies' dugout. The ricochet allowed two runners to score on the play, which included Williams unintentionally doing a split while trying to field a throw at the plate from Carlos Ruiz.
Williams grimaced in pain as he fell to the ground.
"I just rolled over and didn't move," he said.
Williams has a 6.43 ERA, which is the second-highest ERA among 107 qualified pitchers in baseball.
"I felt like I was going to turn the corner and then something like this happens," Williams said. "Can't dwell on it though. Just have to get better."