NFL Network's Ian Rapoport reports that New England Patriots TE Rob Gronkowski (back) will undergo back surgery and will miss "several weeks" of football activities. (Ian Rapoport on Twitter)
Fantasy Impact
With Gronkowski out, Martellus will start. He should be added in all fantasy football formats and be viewed as a middling TE1 moving forward. There is no timetable for Gronkowski's return.