ROB Gronkowski took a major shot at Terry Bradshaw's weight during a hilarious Fox NFL Sunday sequence.

The New England Patriots legend's dig left Michael Strahan in astonishment during the Week 3 edition of the football pregame show.

During the early minutes of Fox NFL Sunday , Rob Gronkowski confirmed that he was coming out of football retirement, but not to play in the NFL.

The future Pro Football Hall of Fame tight end announced he, along with his former Patriots teammate Tom Brady , will participate in the Fanatics Flag Football Classic next March.

Gronk also revealed he's been training but that he's got to "pick it up a little and run fast speed routes."

Bradshaw proceeded to ask Gronkowski how much he weighed before saying, "we've got to get you weighed down a l

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