Antonio Brown is scheduled to see a foot specialist but the injury is so far not believed to keep him out long-term.

Brown has missed a significant portion of his first training camp with the Oakland Raiders.

Jon Gruden acknowledged Friday he was getting frustrated with Brown, whom the team acquired in the offseason, not being available.

"I think we're all disappointed," Gruden said. "We think he's disappointed. We'd like to get the party started. We'd like to get him out here. He's a big part of the team.

"I want the guy out here as soon as possible. I'd like him to never leave and stay in the huddle every play. But life goes on and you've got to continue to work and the other guys got to take advantage of these opportunities, and so far, they have."