Patriots' Rob Gronkowski has 4th forearm surgery - The Boston Globe
New England Patriots Rob Gronkowski performs dangerous wrestling move on a friend as he falls on his twice broken arm
Broken arm may shelf Rob Gronkowski 4-6 weeks – Boston Herald
Rob Gronkowski faces 4th surgery – Boston Herald
Injury update: Patriots TE Rob Gronkowski “has a good chance” of playing in Super Bowl LII - Pats Pulpit
Patriots Have Lost Gronkowski, but Not Their Firepower - The New York Times
Rob Gronkowski breaks forearm again - Sports Mole
Patriots tight end Rob Gronkowski announces his retirement on Instagram
Rob Gronkowski broken arm: It's not Bill Belichick's fault that the Patriots tight end broke his arm.
Gronk ready for Game 2 in return from knee injury – Macomb Daily
Rob Gronkowski out for season after reinjuring forearm - Newsday
Gronkowski undergoes surgery on broken forearm
Report: Infection jeopardizes Rob Gronkowski's availability for start of the 2013 regular season
After surgery, Rob Gronkowski's timetable unclear - The Boston Globe
Patriots' Rob Gronkowski takes part in first practice