Curbishley is convinced Cole was marginally offside before he rounded Hammers goalkeeper Robert Green to score the only goal of the game at Stamford Bridge.
He said: "There were a couple of things. Carlton Cole thinks he should perhaps have had a foul trying to take Alex on. And it (the offside call) was tight. I think he (Joe Cole) was perhaps slightly off and I have seen it again. But it was the linesman´s decision and we have just got to get on with it."
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