By Daniel Chavkin The running back suffered a knee injury in last week’s game. The Cowboys are listing running back Ezekiel Elliott as ‘doubtful’ for their game vs. the Bears, per NFL Network’s Ian Rapoport. Elliott’s injury occurred in the Cowboys 24-6 victory over the Lions last Sunday, and even though the running back said he would like to play, he missed practice on both Wednesday and Thursday. Dallas has a bye following this week, so the team may choose to give Elliott two full weeks to rest and get back to normal. In seven games so far this year, Elliott has 443 rushing yards and four to…