ALAMEDA, Calif. — The Oakland Raiders reportedly sent defensive lineman Richard Seymour a letter giving him until Tuesday to report to the team or face a possible season-long suspension.

The Boston Herald reported Friday that Seymour was hand-delivered the “five-day letter” on Thursday. If Seymour does not report to the Raiders by Tuesday, the team could place him on a suspended list that would prohibit him from playing for any team this season and roll over his contract for another year.
Seymour would then not be eligible for free agency next season. The Raiders would retain his rights in 2010 for $3.7 million.
Raiders coach Tom Cable said he had no knowledge of a letter being sent. Oakland acquired Seymour from New England last Sunday for a 2011 first-round pick.