"I hit my head on the ground, split my nose," Jennings said, according to the Milwaukee Journal Sentinel. "But it was probably a little bit before that. Got hit Wednesday, practiced, finished practice. The next day, headaches during practice. Didn't think anything of it. Friday, Family Night, I probably re-aggravated it.
"I make it sound like it was minor. It really wasn't."
Jennings was banned from the weight room and treadmill while he recovered. Jennings said also it was the third concussion of his career, according to Press-Gazette