West Ham United manager Sam Allardyce has insisted that his side are capable of beating Chelsea this weekend, but will have to be on "top form".

The Hammers boss has claimed that he has taken tips on how to expose Chelsea's "weaknesses" by watching Newcastle United grab a 2-0 victory over the Blues on November 2.

"Newcastle frustrated Chelsea and started the process of winning that game by keeping a clean sheet and scoring a free kick then sucked them in and hit them on the break for the second," Sky Sports News quotes Allardyce as saying.

"With that result for Chelsea, there's a chance to see where their weaknesses lie. But anything less than top form for all of our players would make life difficult for us. We will have to produce the end product because chance creation will be harder."

West Ham are currently 16th in the Premier League table, while Chelsea sit in fourth.