4-time champion, All-Pro tight end Rob Gronkowski announces retirement
Rob Gronkowski: Second Unretirement Will Not Happen
Rob Gronkowski won't rejoin NFL, will stay retired with Tom Brady
Rob Gronkowski discussed Tom Brady reunion, Buccaneers return
Buccaneers' Rob Gronkowski clears up rumors about retiring (again) after winning the Super Bowl (again)
Tampa Bay Buccaneers' Rob Gronkowski Retires From NFL for the Second Time
Buccaneers tried to woo Rob Gronkowski out of retirement
Rob Gronkowski announces retirement
Rob Gronkowski, future Hall-of-Fame TE, retiring again after 2-year return stint with Buccaneers
Who is Rob Gronkowski and why is he retiring?
Rob Gronkowski announces retirement, can Tom Brady convince Gronk to return?, UNDISPUTED
In year two out of retirement, Rob Gronkowski ready to go “full speed” - Bucs Nation