Sunderland boss Sam Allardyce got 'itchy feet' to return to football
Speaking to Alan Shearer, the former Sunderland player says knowing the club and the how passionate the fans are helped to make his decision.
Allardyce says the Black Cats must avoid a relegation battle this season "at all costs".
Watch the full interview on Football Focus, Saturday 28 November, 11:30 GMT on BBC One and the BBC Sport website.
Available to UK users only.