LANDOVER, Md. (AP) — Washington Redskins rookie running back Alfred Morris has broken Clinton Portis' franchise record for yards rushing in a season.

Morris reached 1,524 yards for the season with a 10-yard gain in the third quarter against the Dallas Cowboys on Sunday night. Portis gained 1,516 yards on the ground in 2005.

Morris was a sixth-round draft choice out of Florida Atlantic in this year's draft.

He entered the game Sunday needing 104 yards to top Portis' team mark. Morris topped 100 for the day with his second carry of the second half and was up to 111 yards two runs later. He had a 17-yard touchdown run in the second quarter.

Fans began chanting "Alfred Morris!" after he broke the record.