Chelsea came back from a goal down to beat West Brom 2-1 at home, as they kept up the pressure at the top of the Premier League table.GettyImagesBen Foster looks on helpless as Nicola Anelka's shot creeps in•  Premier League Gallery •  Lomas: Frugal is folly •  Jolly: QPR rise to challengeThe Blues were up against it from the start, as Shane Long stole the ball from Alex on the halfway line and ran through to beat stand-in goalkeeper Hilario in the fourth minute. Chelsea offered little in attack and Salomon Kalou bore the brunt of manager Andre Villas-Boas' anger as he was hauled off in the 34th minute.After the break though, the Blues were a different team and did not have to wait