Derrick Johnson returned an interception for a score and Matt Cassel threw two touchdown passes to Dwayne Bowe leading Kansas City to a 42-20 victory over the Jacksonville Jaguars on Sunday.

The Chiefs (4-2), with the most productive rushing attack in the league coming in, ran for 236 yards and three TDs while overcoming several penalties.

Jacksonville's Todd Bouman, who hadn't thrown a touchdown pass in the regular season since 2005, was signed this week after David Garrard sustained a concussion and backup Trent Edwards hurt his thumb in a loss on Monday night to Tennessee. The 38-year-old hadn't won as a starter since 2001 and was out of football last season.

Still, the Jaguars (3-4) trailed by only one point late in the third when Bouman made a mistake. Under pressure, he stepped up and threw an ill-advised pass to Johnson, who made a juggling interception and ran 15 yards for a touchdown that put KC on top 28-20 with 5:13 left in the third.

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