Crystal Palace 1-0 Chelsea
Chelsea's hopes of winning the Premier League title were hit as they fell to a surprise defeat against a battling Crystal Palace side at Selhurst Park.
The Eagles took the lead when Blues captain John Terry headed into his own net following Joel Ward's cross.
Home goalkeeper Julian Speroni twice denied Eden Hazard and Terry also wasted a chance to level, heading over.
Cameron Jerome nearly made it 2-0 but hit the post as Palace secured a vital win in their bid to avoid relegation.