Washington converted a fourth-and-6 and a fourth-and-12 before Case Keenum threw a 4-yard TD pass to Trey Quinn with six seconds left to deal Eagles bettors a bad beat.
The Raiders have brought back wide receiver Keelan Doss by giving him a hefty bonus.
For nothing else, beating Denver on Monday night would signal a positive first act to move past the drama that was Antonio Brown.
The Raiders open their final season in Oakland with a home game against the division-rival Denver Broncos at 7:15 p.m. Monday.
Tyrell Williams, Darren Waller and Josh Jacobs now will carry the load on the Raiders’ offense.