Striker Richarlison profited from a Chelsea error to secure struggling Everton a 1-0 Premier League win and what could be a precious three points in their bid to avoid relegation at a rocking Goodison Park on Sunday.
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The home side grabbed the lead a minute into the second half after Cesar Azpilicueta gave up possession under pressure from the Brazilian forward, who harried the Chelsea captain into a mistake before slotting a low shot past goalkeeper Edouard Mendy.
Chelsea dominated possession and Everton had to hold on grimly for the final half-hour. They stay in the relegation zone, but move to within two points of Burnley and Leeds United with a game in hand.
Chelsea remain third with 66 points from 34 games as they bid to qualify for the Champions League. They are six points ahead of fifth-placed Arsenal, but have now played a game more.