Rob Gronkowski announces retirement, can Tom Brady convince Gronk to return?, UNDISPUTED
Rob Gronkowski announces retirement after 11 NFL seasons
Former Patriots great Rob Gronkowski retires for a second time
Rob Gronkowski announces second retirement from football
Former Patriots TE Rob Gronkowski announces retirement for 2nd time
Rob Gronkowski Announces NFL Retirement for Second Time (UPDATE)
Rob Gronkowski retirement: How the future HOF tight end's decision to hang up his cleats affects the Buccaneers
Rob Gronkowski: 'Those years in New England mean everything to me'
Rob Gronkowski: Tampa Bay Buccaneers tight end in photos
Fantasy Impact of Rob Gronkowski Retiring - Draft Network
Rob Gronkowski Announces His Retirement - Sports Illustrated