Diego Costa's missed second-half penalty cost Premier League leader Chelsea a victory at Liverpool on Tuesday but a 1-1 draw did little damage to its title prospects as closest rivals Arsenal and Tottenham Hotspur dropped points.
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 leveled the score in the 57th minute as Liverpool avoided a fourth consecutive home defeat in all competitions, although Juergen Klopp's side remains 10 points adrift in fourth place.
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