Daniels signed to the Dallas Cowboys' practice squad on October 5, 2010, after a workout with the team earlier in the day. He will be moved back to fullback, and will also play tight end. He was cut on November 24, 2010. The Cowboys re-signed him to the practice squad on November 29, 2010, when Andrew Sendejo was promoted to the active roster. He was switched back to defensive end. Daniels was released from the practice squad on December 29, 2010. He was re-signed after the season on January 3, 2011. He was waived/injured on August 16, and after clearing waivers, reverted to injured reserve on August 19. He was released from injured reserve with an injury settlement on September 1.