"Nottingham Forest Football Club can confirm that after a series of disappointing results and performances, Ange Postecoglou has been relieved of his duties as head coach with immediate effect," the club posted on X.

"The club will make no further comment at this time."

Forest owner Evangelos Marinakis left his seat during through the contest at City Ground and an announcement on Postecoglou's future was confirmed shortly after full-time.

Postecoglou was only appointed on September 9 -- months after Europa League success with Tottenham -- but after no win and six defeats from his first eight matches, Marinakis has acted and Forest are on the hunt for a third manager this season.

Postecoglou was defiant at his pre-match press conference on Friday, saying if he is given time at a club it always ends "with me and a trophy".

Former Burnley and Everton manager Sean Dyche is reportedly in the frame to be the new boss.