Tom Brady officially announces his retirement from the NFL
Gronk reaffirms he's 'done with football,' even if Tom Brady beckons
Who is Rob Gronkowski and why is he retiring?
Rob Gronkowski Announces NFL Retirement After 9 Seasons with
Former Patriots TE says which NFL coach could bring him out of
Rob Gronkowski announces retirement from NFL AGAIN in emotional
Gronk Retires, But His Agent Leaves an Opening - Sports Illustrated
Rob Gronkowski on retiring from NFL at age 29: 'I didn't even want
Rob Gronkowski Announces Retirement From the NFL
Rob Gronkowski rejoins FOX Sports, will appear on Sunday NFL shows
Bucs' Rob Gronkowski retires, leaves door open for NFL return - UPI
Rob Gronkowski announces retirement from NFL – WFTV
Bill Belichick Statement on Rob Gronkowski