IRVING, Texas -- With the running game a weak spot in the Lions’ offense, word that running back Kevin Smith is lost for the rest of the season is not good.

Smith tore a ligament in his right thumb last Sunday against the Bills. He had surgery on Thursday and his hand is in a bulky cast. He was placed on injured reserve on Saturday.

Expect Jerome Felton and Aaron Brown to get more carries today against the Cowboys. Although if Jahvid Best, who has been bothered by turf toe, gets off to a good start, I would expect they will stay with him. They will re-evaluate the situation after today’s game because there’s a quick turn-around before they play the Patriots on Thanksgiving.

With the roster spot, the Lions activated LB Caleb Campbell from the practice squad. Expect to see him on special teams today in his first every NFL game. If he wasn’t going to be on the 45-man active roster I don’t think they would have activated him.

It should be an interesting afternoon.

Off to Cowboys Stadium ....

(Follow me on Twitter @PaulaPasche throughout the game.)