Twin Cities

Allen will become NFL's top-paid defensive player after trade with Chiefs for draft picks. In an age when retro rules, the Vikings might present a contemporary version of the famed Purple People Eaters next season.

The Vikings have agreed in principle to a multiyear contract with Pro Bowl defensive end Jared Allen and to a multi-pick trade package with the Kansas City Chiefs, according to a source close to the situation.

Allen was en route to Twin Cities on Tuesday night, and the Chiefs and Vikings are expected to complete documentation to make the trade official today.