New England Patriots Pro Bowl guard Logan Mankins will not sign his one-year tender, and is demanding to be traded, Mike Reiss of ESPNBoston.com reports.

"At this point, I'm pretty frustrated, from everything that's happened and the way negotiations have gone," Mankins said in a phone interview. "I want to be traded. I don't need to be here any more."

By not signing his tender, Mankins is under no obligation to attend the Patriots' mini-camp, which begins on Tuesday. The Patriots have reportedly sent Mankins a letter indicating that if he did not sign his one-year tender, which would pay Mankins $3.268 million dollars in 2010, they would reduce the tender amount to 110% of his 2009 base salary, or $1.54 million dollars.

Mankins tells Reiss that he feels the Patriots are not being true to their word.

"After the 2008 season, me and my agent approached the Patriots about an extension and I was told that Mr. Kraft did not want to do an extension because of the [uncertain CBA]," Mankins said. "I was asked to play '09 out, and that they would address contract after the uncapped year. I'm a team player, I took them at word, and I felt I played out an undervalued contract."