Swansea City boss Carlos Carvalhal will not consider selling Alfie Mawson this month.

West Ham want to sign the Swansea defender while Watford have also expressed an interest in the England Under-21 centre-half.

But the Swans have issued a hands-off warning, Liberty Stadium boss Carvalhal insisting he's had assurances Mawson won't be sold.

“When I signed I was told we would not sell our best players, we only want to bring players in," said Carvalhal. “I have had guarantees from the chairman.

“If someone comes in with £50m it might be different. But I want to keep my best players and I don't know if we have had an approach."