Nottingham Forest boss Ange Postecoglou admitted his frustration after his side slipped to a 1-0 home defeat to Sunderland at the City Ground which continues his winless start in charge.
A moment of controversy resulted in Sunderland scoring the only goal of the game, as referee Tony Harrington gave a free-kick in a dangerous area to the visitors after he thought Nicolas Dominguez dived in a challenge with Trai Hume as he tried to clear the ball.
