Patriots' Rob Gronkowski headed for back surgery
Greg Hansen: Gronk became NFL great after relatively quiet college
Gronkowski to have back surgery Tuesday - The Boston Globe
National Football League Notebook: Patriots' Rob Gronkowski has
New England Patriots TE Rob Gronkowski placed on IR, done for
New England Patriots TE Rob Gronkowski to have back surgery
Brady on Gronk: 'We've still got a lot of good players'
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GoLocalProv NEW: Patriots Gronkowski to Have Back Surgery, Out 8
Patriots' Rob Gronkowski To Have Back Surgery?
Gone Gronk: Patriots superstar Rob Gronkowski to undergo back