AP sources: Cowboys sign Raiders DE Mayowa to offer sheet (Yahoo Sports)

Two people with knowledge of the agreement say the Dallas Cowboys have signed defensive end Benson Mayowa, a restricted free agent, to an offer sheet. The Oakland Raiders have five days to match the three-year, $8.55 million deal reached Friday. The Cowboys are trying to improve their pass rush and have missed out on a few unrestricted free agents, including Chris Long.