Cowboys RB Phil Mafah ruled out with chest injury in preseason opener

Dallas Cowboys running back Phil Mafah is out for the remainder of the game against the Seahawks after suffering a chest injury. The injury occurred late in the fourth quarter during their preseason opener at Lumen Field in Seattle. Mafah finished the game with four carries for nine yards. He was competing for a backup role behind starter Javonte Williams. The Cowboys gave opportunities to other running backs, including Jaydon Blue and Malik Davis, during the contest. Further updates on Mafah's condition are expected.

• 2:26 AMYahoo Sports — Cowboys RB Phil Mafah (chest) ruled out for rest of preseason opener vs. Seahawks
• 2:24 AMYahoo Sports — Injury Update: Cowboys RB ruled out for rest of game with chest injury