Checking in with Robert Kraft

DORCHESTER, Mass. -- With tight end Rob Gronkowski set to undergo back surgery this month, New England Patriots owner Robert Kraft declined to comment Monday on the upcoming procedure.

"I think Rob performed pretty well on Saturday at his camp," Kraft said. "He came down to Newtown with us [a few weeks ago] and performed very well and I think he spoke about it, so I think he's probably a more intelligent spokesperson on his condition than I am."

On Saturday, Gronkowski hosted a football camp in Peabody, Mass., but a public relations staffer instructed reporters that Gronkowski would not answer any health-related questions. Similarly, Gronkowski did not speak to reporters about his health during the team's visit to Newtown, Conn. on May 18.

Gronkowski recently underwent a fourth surgery on a broken forearm he suffered last season, and is not expected to be ready for the start of training camp next month, sources told ESPN.

The procedure on his back will take place in the coming weeks and his recovery will be "very comparable to the amount of time he would miss with the arm surgery," according to his agent, Drew Rosenhaus.

Kraft spoke briefly to reporters on Monday after an appearance at William E. Russell Elementary School in Dorchester. The school was awarded a grant by the Healthy Weight Commitment Foundation and Discovery Education, which was matched by the New England Patriots charitable foundation.

"It's nice to see a school from Massachusetts win," Kraft said.