Chelsea's lead at the top of the Premier League table dropped to seven points as they suffered a shocking home defeat while their rivals Tottenham enjoyed an impressive away win.
Antonio Conte's side had won their past 10 league games at Stamford Bridge and had not lost there inany competition since 16 September, but saw that runended by a battling Eagles side.
The Blues struck first, when Cesc Fabregas turned home Eden Hazard's cross after five minutes, but they were quickly behind. Wilfried Zaha turned to fire home from the edge of the box with a fine solo finish and, seconds later, setup Christian Benteke to put Palace ahead with a delicate dinked effort.
Chelsea piled on the pressure but could find no way past Eagles keeper Wayne Hennessey, who made 11 saves in total to ensure his side won a fourth successive game.
Sam Alladayce now becomes the first manager to win a Premier League match against Chelsea with four different clubs.
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Labels: football highlights