In an NFC East divisional showdown between Philadelphia and Dallas, Eagles running back Brian Westbrook is not expected to play, according to two league sources.
An Eagles official Sunday morning was non-committal.
Westbrook suffered a concussion two weeks ago against the Washington Redskins.
Many assumed that, after missing last week's game, Westbrook would play Sunday night against the Cowboys even though he was listed as questionable.
But to be safe, Eagles coach Andy Reid now is expected to rest Westbrook at least another week to recuperate from a severe blow to the head.
Without Westbrook, rookie second-round pick Lesean Mccoy once again would start at running back.