2015 Denver Broncos season - Wikipedia
This Date In Transactions History: Rob Gronkowski
Rob Gronkowski retires: New England Patriots tight end steps away from NFL – The Denver Post
Broncos plan to slow down Patriots' Rob Gronkowski with physicality, better tackling – The Denver Post
Regular Season Game 13 - Chiefs at Broncos (12-11-22) by Kansas City Chiefs - Issuu
Brady Flashes Temper in Patriots' Win - The New York Times
Rob Gronkowski recalls his first time meeting Tom Brady
NFL: Patriots hope to continue success without Gronkowski – The Mercury
Patriots trade TE Rob Gronkowski to Buccaneers
Why Now: What Got Rob Gronkowski Out of Retirement
AFC championship: Rob Gronkowski can hurt the Chiefs, even without the ball
Rob Gronkowski: Tom Brady 'is going to be ready to go next year'
Patriots notes: Rob Gronkowski '100 percent or he wouldn't be going'