Rapid Reaction: Raiders 27, Steelers 24

PITTSBURGH -- The playoff hopes of the defending world champions are officially on life support.

In one of the biggest shockers of Week 13, the Pittsburgh Steelers lost to the Oakland Raiders, 27-24, at home in surprising fashion.

Pittsburgh’s defense gave up three touchdown drives in the fourth quarter, resulting in the team's fourth straight loss. The final score for Oakland was an 11-yard touchdown catch by receiver Louis Murphy with 15 seconds remaining. Heinz Field went silent momentarily, then a chorus of jeers came from the home crowd.

The Steelers are now 6-6 and need a lot of help to get into the postseason.

Wins by the Denver Broncos (8-4) and Jacksonville Jaguars (7-5) certainly do not help Pittsburgh. The rival Baltimore Ravens (6-5) can also improve their wild-card standing with a win Monday against the Green Bay Packers (7-4).

Pittsburgh will try to break its losing skid Thursday when it plays its second game in five days against the Cleveland Browns.