Jacobs suffered a left knee injury Oct. 5 and, despite the pain, played in all of New York's subsequent games except one. He has a team-high 1,002 rush yards and is a major reason why the Giants have the top-ranked rush offense.

Against Dallas, the Giants will split the workload between Derrick Ward and Ahmad Bradshaw. Ward has rushed for a career-high 669 yards this season, and Bradshaw is averaging 5.9 yards per carry.

"The scheme is the scheme, and we have always utilized whichever back was in there in the way that they could be," Giants coach Tom Coughlin told New York reporters Friday.

Barber, who has a dislocated right little toe and a calf injury, didn't make the trip with the Cowboys for last week's game at Pittsburgh.

Barber went through individual drills this week and did not practice Wednesday or Thursday. He was limited in practice Friday. Coach Wade Phillips said Barber is still experiencing pain, and team trainers wanted to see Barber change direction without any problems.

If Barber can't play, the Cowboys will have no problems starting Tashard Choice. The rookie rushed for 88 yards last week against the Steelers.

Williams to play: Cowboys wide receiver Roy Williams did not practice Friday and struggled to move around at times because of his foot injury.

The veteran did not practice all week, but he said he'll be ready by game time.

"I'll be out there - 7:15 in the p.m.," Williams said.

Safety Ken Hamlin (foot) also did not practice for the third straight day, but he's listed as probable. Safety Keith Davis hobbled out of the team facility after practice Friday. When asked if he'll be ready Sunday, Davis said, "I hope."

Ladouceur fine: The Cowboys would be in a real jam if long snapper L.P. Ladouceur couldn't play Sunday because of a neck injury. But Ladouceur, who did not practice Thursday, on Friday said he's ready to go.

Phillips said Cory Procter practiced as the backup long snapper in Ladouceur's absence. With Montrae Holland out because of a right ankle injury, Procter will start at left guard against the Giants.

Briefly: Injured cornerback Adam Jones (neck) was at the Cowboys' facility Friday and said he still hopes to play in the regular-season finale against Philadelphia.

Cowboys vs. Giants

New York Giants (11-2) at Cowboys (8-5)

7:15 p.m. Sunday (Ch. 5)

Line: Cowboys by 3