Yesterday we asked where Buffalo Bills Pro Bowl left tackle Jason Peters is, noting that he’s been missing from the team’s organized team activities and there has been no explanation offered for his absence.

Today Mark Gaughan of the Buffalo News provides the explanation: Peters, who still has three years left on the contract he signed in 2006, is seeking a pay raise.

Per Gaughan, Peters is scheduled to make $3.3 million this year, including a $100,000 escalator he achieved with his selection to the Pro Bowl last season. Although $3.3 million isn’t bad money, it’s not a lot for a Pro Bowl left tackle.

It’s also not a lot for a Bills offensive lineman: Peters makes less than two of his linemates, left guard Derrick Dockery (who signed one of those seven-year, $49 million contracts that it seemed like half the guards in the league signed last year) and right tackle Langston Walker, whose deal averages $5 million a year.

If the Bills decide to give Peters a raise, they do have plenty of cap space available. But they could decide they’re not ready to give another raise to a player whose contract they re-negotiated in 2006, at a time when he had just 11 NFL starts under his belt. If they hold firm, the Bills may have an unhappy Pro Bowler on their hands.