Rob Gronkowski Says He's 'Probably Had 20 Concussions, 5 Blackout Ones'

Rob Gronkowski I've Probably Had 20 Concussions ... '5 Blackout Ones'

Watch TMZ Sports on FS1
Watch The Hollywood Beatdown


Waiting for your permission to load the comments.

Old news is old news!
Be First!

Get TMZ breaking news sent right to your browser!