West Ham United boss Gianfranco Zola accepts fans are frustrated with the current situation.

The Hammers face Chelsea today rooted inside the bottom three.

Zola told whufc.com: "I am not worried. I know it is part of the job. I do things and I know if I don't get results, the fans will be unhappy.

"That is totally fair and all I can say is I try my best to make it happen for them. I try to play the way they like. I just have a go. I don't think I have to focus on this. My focus is just to make sure we come back."