(WNFL) - Aaron Rodgers is not the only Green Bay Packers' starter who's uncertain for Sunday's game at Dallas. Running back Eddie Lacy did not practice yesterday after he sprained his right ankle in last Sunday's home win over Atlanta. Coach Mike McCarthy said Lacy would continue a rehab today, and he might practice tomorrow. The rookie has accounted for almost two-thirds of Green Bay's rushing attempts this season with 887 yards and a team rookie-record seven touchdowns. McCarthy appears cautiously optimistic that Lacy can play against the Cowboys. If not, James Starks will get the start. The Packers also have Khalil Bell and fullback John Kuhn as backups. Rodgers is still waiting to be medically-cleared in the wake of his broken collarbone. Tight end Andrew Quarless said Rodgers got snaps in yesterday with the Packer first team. Cowboys' coach Jason Garrett says his team expects Rodgers to play. He's been out since November fourth. Also, inside linebacker Brad Jones sat out of yesterday's practice with a bad ankle, and inside linebacker Jamari Lattimore missed the workout with a knee injury.