The former four time Super Bowl champion Rob Gronkowski was considered as greatest of all time. Though the 34 year old maintained a fit routine, the pain and injuries he had suffered during his time at NFL, made him retire from the sport. His elder brother Chris, also a former NFL player, is a hardcore fitness enthusiast and bodybuilder.
Who is Rob Gronkowski's 36-Year-Old Brother bodybuilding fanatic?
Which bodybuilding trainer did Chris Gronkowski challenge?
Chris Gronkowski takes down Jarrod Cardona in an intense wall ball burpee challenge