Rob Gronkowski announces retirement from NFL for second time
Former Patriots and Bucs star Rob Gronkowski says there's one
Buccaneers tight end Rob Gronkowski retires for second time
Rob Gronkowski retires as the greatest tight end of all time - Pats Pulpit
Rob Gronkowski retires for second time following decorated 11-year
Rob Gronkowski Announces Retirement From NFL, Again
Tampa Bay Buccaneers TE Rob Gronkowski retiring from NFL for
Rob Gronkowski retires after 9 seasons with Patriots, 2 with
Rob Gronkowski retires again, but could make another comeback in
Rob Gronkowski: Tampa Bay Buccaneers tight end in photos
Rob Gronkowski: Second Unretirement Will Not Happen