Patriots' Rob Gronkowski to undergo back surgery Friday

FOXBOROUGH, Mass. (AP) Rob Gronkowski's season is likely over.

The New England Patriots tight end was scheduled to have surgery for a herniated disk in his lower back, the team said in a statement Thursday night.

He's likely to be out for eight weeks or more. The Super Bowl is scheduled for Houston on Feb. 5, should the Patriots get that far.

Gronkowski sat out practice Wednesday with what listed as a back injury. He was absent from practice again on Thursday.

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