Napoli striker Dries Mertens is target for West Ham.

The Sun says the Belgian has been linked with both Manchester United and Chelsea but is now on Slaven Bilic's radar.

Napoli are desperate to keep Mertens — yet he could be tempted by a £20 million summer switch to the Premier League.

Mertens has scored 24 goals in Serie A plus another five goals in the Champions League.

It's been reported that Martens has been offered a new contract by Napoli with a £30 million release clause, but they are yet to confirm he has signed it.