Matt Cassel shows off his open field moves on the run. Tim Heitman USA TODAY Sports

Dallas Cowboys quarterback Matt Cassel threw for just 61 passing yards in the first half, so he had to find another way to help the team move the football. On a first down late in the second quarter, Cassel looked more like a running back on a 24-yard first down scamper.

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Cassel finished the first half as the Cowboys' leading rusher with 35 yards on three carries. The Cowboys trail the Seattle Seahawks 10-6 at halftime.