Rob Gronkowski revealed in an interview Wednesday the horrifying effect his successful NFL career had on his body both physically and mentally.
Gronkowski told NBC News that he had a “centimeter of liquid” in his head at points during his nine-year career with the New England Patriots -- where he won three Super Bowl titles.
“No lie, I felt my head, I used to have liquid,” the former tight end said. “It used to be thick, like, my head used to be thicker—a centimeter of liquid in some spots. And you'd be like, what the heck? You could put indents in my head.”
Gronkowski also noted that he experienced some “mood swings,” which he said was caused by potential brain injuries he suffered playing football.