West Ham United have opened talks with Lille attacker Salomon Kalou.

Hammers boss Sam Allardyce admits he faces a fight to clinch his signature.

Allardyce said: "The chairman is speaking with the player's agent. We understand he wants to come back and play in England and we are having a look at it.

"His record at Chelsea, his scoring record in France and his age is very appealing. But which position he wants to play could be a stumbling block."