Big. Strong. Fast. No Match for A TBI. Rob Gronkowski Retires After 20 Concussions in His Career.

Ever since former New England Patriots star Rob Gronkowski retired in March, fans have been wondering if he will ever return to the NFL.

“I went through and had nine surgeries. I probably had like 20 concussions in my life. I remember five blackout ones.”

“Now, I feel great,” he added. “I feel faster and I feel like I can think.”(cbsnews.com)