Join the Miguel Delaney: Inside Football newsletter and get behind-the-scenes access and unrivalled insight Join the Miguel Delaney: Inside Football newsletter Join the Miguel Delaney: Inside Football newsletter Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy noticeNottingham 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. Postecoglou admits the way his team defended the free-kick was a concern and refused to pin the blame on referee Harrington. The lads are well connected with this idea, proud to win away but aware we have to better. We will take it game by game.”