Tight end
Rob Gronkowski, who is recovering from back surgery, has returned to the
New England Patriots' facility in Foxborough, Mass., where he is doing his rehab work under the guidance of the team's trainers.
Gronkowski is concentrating mainly on stretching and improving his core strength.
A person who has seen Gronkowski at the facility tells ESPN that Gronkowski looks good and seems to be progressing,
but nobody yet knows whether he'll be ready for the Patriots' opener against the
Buffalo Bills.
Gronkowski had the surgery on his back last month and Dr. Robert Watkins, who performed the procedure, said the "timing of his return to football will depend on his progression through the rehabilitation program."
He also had a fourth surgery on his left forearm in May, where doctors put new plates in to repair the previous break.
He is expected to open training camp on the physically unable to perform list, a league source told ESPN NFL Insider Adam Schefter last month.
Information from ESPN NFL Insider Adam Schefter was used in this report.