Who is Rob Gronkowski and why is he retiring?
Rob Gronkowski - Tampa Bay Buccaneers Tight End - ESPN
Rob Gronkowski: 'Those years in New England mean everything to me.'
Rob Gronkowski announces retirement
Rob Gronkowski Through the Years 2010-Current
Tom Brady, Rob Gronkowski throw during private workout at UCLA campus
Rob Gronkowski - Wikipedia
Rob Gronkowski Honors Tom Brady After NFL Retirement, Calls Time with QB 'Special', News, Scores, Highlights, Stats, and Rumors
Rob Gronkowski retires again, but could make another comeback in 2022 or 2023, agent says (report)
A Timeline of Tom Brady and Rob Gronkowski's 11-Year Friendship
Rob Gronkowski hooking up with Tom Brady's NFT venture
Rob Gronkowski: Former NFL player isn't making a comeback, he's hawking CBD oil
Rob Gronkowski retires (again) from NFL, revisited: Why former Buccaneers, Patriots tight end called it a career