Forlan struggled during his time at Manchester United and his Premier League career still haunts him.
He said: “Whenever I return to England I always experience something special because of my time at United which was not as good as I wanted it to be. So I always want to do the best I can in these games.
“I have beaten Chelsea with Manchester United. I hope we can get three points in London because if we lose we will have just one point from three games and will have so much to do in the last three matches. So we have got to face up to Chelsea.
“A draw is no good for us although that would on paper seem a good result against Chelsea when you consider how well they have started the season under Carlo Ancelotti. Things are going very well for him.
“It is in our favour that Didier Drogba is out but with their squad they will still be very dangerous.”
