Chelsea hopes of securing a top-four finish were hindered by a 2-0 defeat to Everton with the Merseysiders running out deserved winners at Goodison Park.
David Moyes' side started in positive fashion and went ahead in the fifth minute when Steven Pienaar, making his second home debut, lashed the ball home from close range.
Frank Lampard had Chelsea's best chance to level matters in the first half, but he dragged his left-footed shot wide when unmarked in the penalty area from Juan Mata's cross.
Andre Villas-Boas' side created very little after the interval and they conceded a second in the 71st minute when Denis Stracqualursi slotted home after being picked out by Landon Donovan.
The victory has lifted Everton into the top ten while Chelsea have dropped to fifth in the standings following Arsenal's late 2-1 win over in-form Sunderland at the Stadium of Light.