PITTSFORD, N.Y. -- Arriving to Buffalo Bills training camp in his dirt-splattered pickup truck, 10th-year defensive tackle Kyle Williams -- the team's longest-tenured current player -- hadn't yet heard of teammate LeSean McCoy's Instagram invitation for a "females-only" party last weekend.

"You'll have to coach me up. I don't know what we're talking about," he said.

That didn't stop the team captain from keeping it light about the star running back's tastes in pre-training camp celebrations.

"I'm a little upset I didn't get invited," Williams joked. "My wife's glad I didn't get invited."

Running back Fred Jackson, a fellow team captain, also said he wasn't invited to McCoy's party.

"And that's a good thing," Jackson said. "I'm married and I want to keep it that way."

The Bills told McCoy he wasn't permitted to use the team's logo in the invitation without their permission.

"You always have to be careful with logos and stuff because of the branding and the organizational issues and league issues but I don't how to respond to that," Williams said. "I don't know what's going. Whatever him and Rex are talking about is him and Rex's deal. His business."