Rob Gronkowski won't return to NFL even if Tom Brady calls
Rob Gronkowski Announces NFL Retirement After 9 Seasons with Patriots, News, Scores, Highlights, Stats, and Rumors
Rob Gronkowski announces his retirement from NFL for second time
Rob Gronkowski retirement surprises NFL world
Tampa Bay Buccaneers Tight End Rob Gronkowski Announces Retires, 11 NFL Seasons and 4 Super Bowls
Legendary Patriots TE Rob Gronkowski announces his retirement - Field Gulls
Ex-Patriots tight end Rob Gronkowski announces NFL retirement – NBC Sports Boston
Rob Gronkowski retires, won't join Tom Brady for 3rd season in Tampa Bay
Former Patriots TE Rob Gronkowski announces retirement for 2nd time
Rob Gronkowski Announces NFL Retirement for Second Time (UPDATE)
Patriots tight end Rob Gronkowski announces retirement