Gronk's legacy: How does he stack up among the best to ever play tight end? - The Boston Globe
Rob Gronkowski announces his second retirement from playing football
Rob Gronkowski Intends To Retire
Rob Gronkowski Doesn't Miss Football - The New York Times
Rob Gronkowski on excluding Patriots in second retirement post
Former Arizona Wildcat Rob Gronkowski retires from NFL for second time - Arizona Desert Swarm
Former Wildcat and four-time Super Bowl champion Rob Gronkowski retires from the NFL again – The Daily Wildcat
Ex-New England Patriots Star Rob Gronkowski Unretiring? Only One Team Could Lure Him Back - Sports Illustrated New England Patriots News, Analysis and More
NFL: Over and out as Gronkowski retires for second time
Patriots: Rob Gronkowski reacts to Tom Brady un-retirement rumors
Former Patriots TE Rob Gronkowski announces retirement for 2nd time
Former Patriots great Rob Gronkowski retires for a second time