According to the source, the hope early in the week was Bradford could play with a high ankle sprain, but given the nature of his injury, no one was certain. After Bradford missed his second consecutive practice Thursday, it appears playing Sunday is less likely. The team hopes Bradford can do more in walkthroughs and practice Friday.
If Bradford can't play, A.J. Feeley would start.
Bradford's injury is one that often sidelines players for up to a month, but the quarterback said Wednesday that the ankle was improved from earlier in the week and that he believed his playing would be a matter of "pain tolerance," not how much he is able to practice this week.
Bradford, who was born in Oklahoma City and won the 2008 Heisman Trophy at the University of Oklahoma, said he'd do everything he can to be ready to play at Dallas.
"I've had this Dallas game circled for a while now, knowing that it's about as close to home as I get," Bradford said. "It'd mean a lot for me to play down there, so hopefully I'll be ready."
The Associated Press contributed to this report.