Sunderland have reportedly put forward an £11m bid for West Ham United striker Diafra Sakho.
Black Cats boss Sam Allardyce is believed to be keen to reunite with the 26-year-old after he bought him while manager of the Hammers.
Allardyce sealed a £3.5m deal to take Sakho to Upton Park from Metz in 2014, but has had to fork out more than double two years later.
According to Sky Sports News, Sunderland have tabled an £11m offer for the striker, who scored five Premier League goals under Slaven Bilic this season.
Sakho's goal tally in the 2014-15 campaign was 12, but a mixture of injuries and lacklustre form prevented him from reaching similar heights.
