Tampa Bay Buccaneers TE Rob Gronkowski announces retirement from NFL after 11 seasons
Patriots' Rob Gronkowski announces his retirement following nine NFL seasons - Los Angeles Times
Retired Rob Gronkowski could make New England Patriots return in the future, says his agent, NFL News
Tom Brady retires after 22 seasons, 7 Super Bowl titles - The Columbian
Rob Gronkowski rejoins FOX Sports, will appear on Sunday NFL shows
Patriots tight end Rob Gronkowski announces retirement
Rob Gronkowski announces retirement after 11 NFL seasons
Bleacher Report - Rob Gronkowski says he's retiring from
Rob Gronkowski announces his NFL retirement, but his agent not convinced
Gronk retiring after 11 NFL seasons, 4 Super Bowl titles
Rob Gronkowski will try a field goal in live Super Bowl ad
Star Patriots tight end Rob Gronkowski announces he is retiring - The Boston Globe
Rob Gronkowski shares the money advice he gives his NFL teammates