"I am preparing like I am playing this week, the way I'm preparing mentally in the classroom, physically on the field," Murray said after Wednesday's practice. "I am running, doing some good things with [trainer] Britt [Brown]. We haven't said which way, what we're going to do yet. I think it all depends on how comfortable I am. We were able to do some things today and it felt good."
Cowboys owner/general manager Jerry Jones said it's possible Murray could miss Sunday's game and return the following week when the Cowboys visit the Detroit Lions.
"I don't know what's been said," Murray said when told about Jones' comments. "But my intentions are to just work hard and possibly do everything I can to play this week. Is that going to happen? I don't know. I am not saying one way or another. But we had a good day (Wednesday) and I am going to continue to do what the trainers tell me to do. We'll see what happens later in the week."
The Cowboys had five injured defensive players on Wednesday's practice report.
The biggest name on the list is defensive end DeMarcus Ware, who didn't practice because of a thigh injury. Also, defensive end George Selvie missed practice with a shoulder injury, though he did some rehab work with the strength and conditioning staff. Defensive end Edgar Jones (groin) also missed practice.
Running back Lance Dunbar missed practice with a hamstring injury, but said he did some running on Wednesday. Dunbar isn't expected back until next week.