Coventry City will have two trips to the North East next season after Newcastle United, who have former City boss Iain Dowie as coach and Middlesbrough were relegated from the Premier League.
Middlesbrough lost 2-1 at West Ham to finish second bottom whilst a Duff own goal in the 38th minute sent Newcastle into the Championship at Aston Villa.
Their defeats kept Hull City and Sunderland in the Premier League.