Rob Gronkowski retirement: How the future HOF tight end's decision to hang up his cleats affects the Buccaneers
NFL star Rob Gronkowski announces his retirement - KAKE
Rob Gronkowski announces retirement from the NFL - Hernando Sun
Tom Brady congratulates Rob Gronkowski on retirement
Patriots tight end Rob Gronkowski announces retirement
Rob Gronkowski formally announces NFL retirement for second time - On3
Rob Gronkowski Announces Retirement From NFL For Second Time
Former Wildcat, Super Bowl champ Rob Gronkowski retires for second time
Rob Gronkowski announces his NFL retirement
Rob Gronkowski Announces NFL Retirement for Second Time (UPDATE)
3 teams Rob Gronkowski should join if he comes out of retirement