NFL News: Patriots tight end Rob Gronkowski announces his retirement - Pats Pulpit
Patriots will open 2019 season on Sunday night, Sept. 8 - The Boston Globe
Tag: Rob Gronkowski – NBC Boston
NFL rumors: Ex-Patriots TE Rob Gronkowski hints at when he might unretire and return this season
Patriots tight end Rob Gronkowski announces retirement
Rob Gronkowski Announces NFL Retirement in Lengthy Instagram Post – NECN
Rob Gronkowski returns from retirement to reunite with Tom Brady on Tampa Bay Buccaneers
Rob Gronkowski announces retirement from NFL – Boston Herald
All of Rob Gronkowski's NFL regular season and playoff records – NBC Sports Boston
Tom Brady leaves Patriots for Buccaneers: Tampa reportedly strikes trade with New England for Rob Gronkowski