West Brom remain in fear of relegation after a 3-1 defeat away at Manchester City.
The Baggies, who came into this game on a three match unbeaten streak, failed to get started and found themselves 2-0 down after just 10 minutes.
Pablo Zabaleta opened the scoring at the Etihad Stadium after just three minutes, getting his head on the rebound of Edin Dzeko's saved effort. Sergio Aguero doubled the lead with a long-range effort.
With Sunderland picking up four points away at Manchester City and Chelsea, the pressure was on Pepe Mel's side to grab anything from this game.
After a poor free-kick from the home side, the visitors broke away setting up Graham Dorrans on the edge of the area who wriggled his way between the defenders and volleyed the ball home to bring his side back into the game.
But Manuel Pellegrini's men regained their two goal advantage just after the half hour mark. Liam Ridgewell lost Martin Demichelis in the box who poked home the third from a lofted corner.
There was to be no fightback in the second half as City held on to all three points to keep their title hopes alive.
West Brom on the other hand remain 16th on 34 points with four games remaining including vital home games against West Ham United and Stoke City. The Baggies also face trips to Arsenal and a rejuvenated, Sunderland.
Mel told BBC Sport that it is imperative that his side picks up three points in their next game.
"West Ham is a cup final for us, the game of the year. What we've got to do is focus on beating West Ham, if not it will be much more difficult."
Ridgewell picked up a knee injury from last night's encounter and will have a scan to see whether he will be able to play this weekend.
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