A brace from Louis Saha ended Chelsea's 10-match unbeaten run as Everton stunned the Premier League leaders 2-1. Saha scored in either side of the interval, while missing a penalty in between, to cancel out Florent Malouda's opener for the Blues. Chelsea remained top on 58 points, one above Manchester United, who missed out on the summit with a 1-1 draw at Aston Villa. An own-goal from defender James Collins saved the Red Devils after Carlos Cuellar's header had given Villa the lead. United had winger Luis Nani sent off in the first half for a fierce challenge on Stillian Petrov. In London, Arsenal took advantage of their oppositions' stumbling to down Liverpool 1-0. A second-half header from Abou Diaby helped Arsene Wenger's men get back to winning ways.