Defensive end Khalil Mack will not report to the Raiders when camp opens on Thursday, a source tells Adam Schefter of ESPN.com (on Twitter). This does not appear to be a case of posturing, Schefter adds. 
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Mack is scheduled to earn $13.846MM after having his fifth-year option picked up, but he’s pushing for a long-term deal before he hits free agency next offseason. Fellow 2014 first-round picks Aaron Donald and Jadeveon Clowney are in similar situations, and it appears that each player is waiting for one of the other two to sign first. Raiders general manager Reggie McKenzie has said that the organization won’t use other contracts as a basis for Mack’s extension, but it’s hard to imagine that those other deals would not be used as reference points.
In a recent poll, more than half of PFR’s readers said that Donald would finish the offseason as the league’s highest-paid defender. However, Mack was not far behind in voting.
Mack has averaged 12 sacks per season over the last three years. It is believed that he is seeking a multi-year deal worth roughly $20MM per season.
Best Way to make a good impression on the new coach is to skip camp.
Yes, I’m sure Mack is quaking in his boots over upsetting Jon Gruden. Ownership may let Gruden cut a Marquette King and make a bunch of other questionable personnel moves, but they’re not about to let Gruden take a piss on their best defensive player, one of the two or three best defensive players in the league.
Best way to make a good M pression on the new coach is to skip team events
They should have had a poll for the leagues highest offender….Ex Raider Aldon Smith would be a leading contender there.
They just need to talk and Get it signed