Phillip Tanner also has received a lot of work this week with the starters, according to the Fort Worth Star-Telegram, including on Wednesday, when Jones was out of practice. Jones is cautiously expected to start against the New York Giants on Sunday in a massive early game for the Cowboys.
Tanner could wind up splitting carries even if Jones makes it through the game. And it wouldn't be a surprise if Tanner had to close out the game like he did in Baltimore and Carolina.
Tanner was very tough to tackle last week. He can punish defenders and take a hit. This is a "next man up" kind of week in Dallas, with linebacker Sean Lee and running back DeMarco Murray out. They need guys like Tanner to step up.Follow Gregg Rosenthal on Twitter @greggrosenthal.