Khalil Mack did not win the Defensive Rookie of the Year award, but teammate Justin Tuck believes the upside for the Oakland Raiders’ linebacker is Hall of Fame-level.

For Tuck, the rookie’s work ethic and desire to learn are what will get him to the next level.

“He comes into meeting rooms, he’ll call me on Friday night before we come in on Saturday to finish everything going into our game and say, ‘I’ve got a question about this,’ ” Tuck said. “From my experiences, guys like that are going to be very successful. I don’t know what success that includes him to be. I don’t know if that’s a Hall of Fame guy. I don’t know if that’s multiple Pro Bowls, I don’t know if that’s just he’s a quality football player.

“But I know for a fact he’s going to be successful, because barring injury, I have no problem of saying he has the capability to be one of the best defensive players in this league for a long time.”

via Kevin Patra of NFL.com