Rob Gronkowski on retiring from NFL at age 29: 'I didn't even want to negotiate' - Good Morning America
Rob Gronkowski says there is one NFL coach who can (maybe) get him out of retirement
Rob Gronkowski retires, won't join Tom Brady for a third season in Tampa Bay
Rob Gronkowski drops RETIREMENT hint after Super Bowl 52 – and fans are freaking out, Other, Sport
Recently retired Patriot Rob Gronkowski dented newest Super Bowl trophy by playing baseball with it at Boston Red Sox home opener
Will Rob Gronkowski retire after Super Bowl LIII?
Rob Gronkowski doesn't care if Tom Brady calls him, he's retired for good
Will Rob Gronkowski retire? Why the Patriots star's decision isn't easy - ESPN
Rob Gronkowski Needs A Few Weeks To Decide On His Future, But Hints He May Still Play Even If Tom Brady Retires - CBS Boston
Rob Gronkowski says he would consider retiring with Patriots, if offered : r/Patriots