Ware sprained his left knee when his leg twisted awkwardly while rushing Seattle quarterback Matt Hasselbeck, whom he had already sacked three times. Ware's foot seemed to turn strangely on one step, then again on the next one before he fell to the ground.
Barber dislocated the pinkie toe on his right foot in the first half, and ran only one time after halftime before coming out of the Cowboys' 34-9 victory for good.
"I'm optimistic about both of them," Jones said after the game. "They're thumbs up."
Jones said both players would be evaluated. The Cowboys don't practice again until Monday, and their next game is Dec. 7 at Pittsburgh.
After being tended to on the field by Cowboys trainers, Ware walked off under his own power and came back out for the postgame celebration. His three sacks, among a season-high seven by Dallas, pushed Ware's season total to 15 and into the NFL lead ahead of Joey Porter (14 1/2).
"DeMarcus was moving around real well when he came in," Jones said.
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. After a 4-yard run midway through the third quarter, he went to the sideline and never returned to the game.
Barber had 10 carries for 32 yards, including a 2-yard touchdown in the first quarter.
"Regarding the dislocation of Marion, we'll have to see how that goes," Jones said. "We'll have to figure out a way to keep that in place, but he went back out after the dislocation. But we just didn't think it was necessary to keep him out there very long."
Copyright 2008 by The Associated Press