According to Squawka statistics, Postkoglu lost all 4 times he faced Chelsea in the Premier League. During Postkoglu's coaching career, Chelsea is one of three teams that he has faced four or more times but failed to win, the other two being Arsenal and Wolves.
Nottingham Forest will face Chelsea at home in the 8th round of the Premier League on Saturday night. Nottingham Forest coach Postkoglu is under huge pressure due to poor results, but Chelsea is not an opponent he will like.