The Facts: Following up on a previous item. ... Surgery on Gronkowski’s back has concluded, a source told PFT’s Mike Florio on Tuesday. It is believed the surgery, conducted Tuesday, was successful, the source told PFT.

Diehards Line:As PFT's Mike Wilkening notes, at present, it’s not yet certain when Gronkowski -- one of the game’s top all-around performers at his position -- will again be ready to play. But there has been speculation suggesting he could miss the first month of the regular season. The Pro Bowl tight end was bothered by a forearm injury /infection late in the 2012 campaign and into this offseason before the back issue became a primary concern. ... Stay tuned. More as developments warrant.