Anfield

Chelsea held at Anfield

Spain striker Costa was denied by Liverpool keeper Simon Mignolet, who made amends for being caught off guard by a superb David Luiz free kick midway through the first half.

Georginio Wijnaldum's close-range header levelled the scores in the 57th minute as Liverpool avoided a fourth consecutive home defeat in all competitions although Juergen Klopp's side remain 10 points adrift in fourth place.

Arsenal, who began the day second, suffered a shock 2-1 home defeat by Watford who managed a first league win in eight games.