Former Tampa Bay Bucs Tight End Rob Gronkowski Announces his Retirement from Football - Bucs Nation
Is Rob Gronkowski the Greatest TE of All Time? - Draft Network
Rob Gronkowski announces his second retirement from playing football
Rob Gronkowski formally announces NFL retirement for second time - On3
Buccaneers tried to woo Rob Gronkowski out of retirement
Rob Gronkowski announces second retirement from NFL
Buccaneers' Gronkowski announces retirement from NFL for second time
Rob 'Gronk' Gronkowski announces retirement from Buccaneers, NFL on Instagram
Who is Rob Gronkowski and why is he retiring?
Rob Gronkowski Announces Retirement From NFL, Again
Rob Gronkowski retires, won't join Tom Brady for a third season in Tampa Bay