Rob Gronkowski's girlfriend isn't sold on his retirement
NFL odds: Could Gronkowski unretire, add to stellar betting record?
Rob Gronkowski retirement: What made Patriots, Bucs TE a star - Sports Illustrated
Rob Gronkowski is doing something special in Tampa - never take his dominance for granted, NFL News
Rob Gronkowski retires as the owner of 15 NFL records - Pats Pulpit
Rob Gronkowski kept retirement decision a secret from teammates because he was determined to quit
Rob Gronkowski says he's open to retiring with the Patriots
Rob Gronkowski's girlfriend Camille Kostek not buying retirement
Where is Rob Gronkowski? Latest news, rumors about whether retired TE will return to Buccaneers
Rob Gronkowski retires: His impact and legacy - Sports Illustrated