The Raiders scored a touchdown with 21 seconds left to send the Steelers to their third straight defeat, 24-21, Sunday in Oakland.
After the Raiders scored, Steelers kicker Chris Boswell slipped while attempting to make a game-tying field goal and the kick was blocked.
Ben Roethlisberger missed the first four drives in the second half after suffering a rib injury.
With a 7-5-1 record Pittsburgh prepares for a Sunday date with the Patriots.
