Diafra Sakho has told West Ham boss Slaven Bilic he wants to leave the club this summer, according to Sky Sports.

Sky sources understand the forward spoke with Bilic over the weekend and asked to be sold ahead of next season.

Sunderland boss Sam Allardyce, who previously signed the striker in 2014, is keen on the 26 year old and tabled an £11m bid to sign him earlier this month.