Tampa Bay Buccaneers' Rob Gronkowski Retires From NFL for the Second Time
Rob Gronkowski joins Jerry Rice with 2-plus TDs in multiple Super Bowls
Rob Gronkowski retires for second time after 11 seasons in NFL - The Washington Post
Inside story of how Tom Brady's Bucs came together for the QB's seventh Super Bowl title - Sports Illustrated
Rob Gronkowski retires for second time after decorated 11-year NFL career - Mirror Online
Why Rob Gronkowski says he 'isn't really retiring,' plus what he'd say if Tom Brady called - Good Morning America
Four-time Super Bowl champion Rob Gronkowski retires from NFL for second time, NFL
A Look Back at Tom Brady's NFL Career - WSJ
A Look Back at Tom Brady's NFL Career - WSJ
Rob Gronkowski retires from NFL after 11 years with Patriots, Bucs
Rob Gronkowski Announces NFL Retirement for Second Time (UPDATE)
Ten other sportspeople who came back after retiring - with mixed results
Rob Gronkowski on excluding Patriots in second retirement post
Rob Gronkowski Announces NFL Retirement for Second Time (UPDATE)
Ranking Best 2nd RD Draft Picks of Last 20 Yrs: Gronk at #1