FOXBOROUGH, Mass. -- New England Patriots owner Robert Kraft expressed concern Sunday that the NFL's ongoing labor dispute is reaching a breaking point with fans.

"One of my concerns is that we not aggravate our fan base, and we have to be very careful. I think we're coming to that point now where we start to hurt ourselves collectively in the eyes of our fans," Kraft said. "In the end, the fans just want football. They don't want to hear about all this meaningless squabbling."

Kraft was speaking at the third annual Raytheon "Science of Sports" Science Fair at Gillette Stadium, where he was joined by Patriots safety Patrick Chung.

It was unusual to see an owner and player side by side at a team's stadium during the lockout, but the league is allowing teams to have players involved in preexisting charitable events that are part of a yearly tradition. Kraft joked that he owed a thank-you to Raytheon for allowing him to see Chung.

"We can't wait to get him back in this building and get our whole team here," Kraft said. "That's what really should happen and we should focus on business."

To do that, Kraft believes the first step is for owners and players to stop litigating.