Sunderland have shut the door on any potential departure for Wilson Isidor, according to Sky Sports.

The 25-year-old striker had reportedly attracted interest from West Ham, but the Black Cats are said to have made their stance clear—he's not for sale. Sky Sports' report suggests Sunderland view Isidor as an important part of their squad and have no intention of entertaining offers from the Hammers or elsewhere this window.

While West Ham's exact level of interest remains unclear from the report, Sunderland's firm response appears designed to end any speculation before it gathers pace. With the transfer window still open, this stance from the Wearside club signals confidence in Isidor's role going forward, according to the EPL Index citing Sky Sports.