The problem occurred when neither player heard the other calling for the ball and the result was a full-speed collision. McCoy remained on the ground for several minutes before limping off the field and into the clubhouse.
"I called it I think twice, but it was kind of windy and I might not have said it loud enough," McCoy said. "Obviously I didn't. We were both kind of running hard after it."
There was no immediate timetable for McCoy's return but he'll likely require at least a couple of days off. The situation could have been much worse but both players were able to avoid knocking heads and the only damage was Langerhans' knee connecting to McCoy's quadriceps muscle.
The injury essentially is a charley horse, but McCoy couldn't help but deliver a rather clever line when asked if that was the case.
"I hope that's all it is," McCoy said. "Sounds pretty wimpy when you say it like that."