Mvoto joins up with Black Cats

Sunderland have signed French defender Jean-Yves Mvoto for an undisclosed fee.

The centre-back has signed a three and a half year contract.

"Jean is one for the future," boss Roy Keane told the club website. "He's a strong centre-back who will be a good addition to our squad."

"This is a big opportunity," said Mvoto. "I'm pleased to be here."