Patriots tight end Rob Gronkowski announces he's retiring
How former Patriots star Gronkowski is figuring out life after football
Patriots tight end Rob Gronkowski announces retirement
Rob Gronkowski forced Bill Belichick's hand in return to NFL
New England Patriots tight end Rob Gronkowski announces retirement, New England Patriots
Rob Gronkowski's retirement marks the end of an era for fantasy tight ends, Fantasy Football News, Rankings and Projections
Rob Gronkowski trade: Patriots send tight end to Buccaneers, reunites with Tom Brady - The Phinsider
Rob Gronkowski tells TMZ he'd retire from NFL if he had to decide right now
Statement from Robert Kraft on the retirement of Rob Gronkowski
Rob Gronkowski retirement: How the future HOF tight end's decision to hang up his cleats affects the Buccaneers