Irving, TX -- (Sports Network) - Dallas Cowboys linebacker DeMarcus Ware and running back Marion Barber left Thursday's 34-9 win against Seattle due to injuries.

Ware had three sacks, taking over the lead in the NFL with 15, before he sprained his left knee late in the third quarter. Ware got hurt when his leg twisted as he was rushing the quarterback.

After being tended to on the field by trainers, Ware walked off under his own power, but did not return.

Barber got hurt late in the first half, and went to the locker room before halftime. He came back after the break, but ran only one more time.

Barber had 10 carries for 32 yards, including a two-yard touchdown in the first quarter, and added a 13-yard reception.

Dallas coach Wade Phillips said after the game that X-Rays on Barber were negative whie Ware will be evaluated later.