Manchester City kept alive their flickering hopes of a second Premier League football title in three seasons, and increased West Bromwich Albion's relegation worries, with a 3-1 victory at home.
Goals in the first 10 minutes from Argentines Pablo Zabaleta and Sergio Aguero and a third before halftime from compatriot Martin Demichelis, following a Graham Dorrans strike for the visitors, helped close the gap on leaders Liverpool to six points.
Third-placed City also have a game in hand on the top two clubs.
Liverpool, seeking a first English title since 1990, have 80 points from 35 games followed by Chelsea on 75 from 35 and City with 74 from 34.
