Ange Postecoglou has been sacked by Nottingham Forest following the club’s 3-0 defeat to Chelsea at the City Ground on Saturday, October 18.The Greek-born manager was only appointed on September 9 after former coach Nuno Espirito Santo departed the club. Forest failed to win any of their eight matches that Postecoglou oversaw, collecting just one point from their last five Premier League matches. The dismissal saw him achieve an unwanted record of the shortest managerial reign in Premier League history, having been at the helm for just 39 days.Less than twenty minutes after full-time at the City Ground, Forest released a statement announcing that Postecoglou has been relieved of his duties. It read:“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 will make no further comment at this time.”Of the eight matches Postecoglou managed, six ended in defeats, including an early Carabao Cup exit to Championship side Swansea. The remaining two games ended in draws – away at Burnley (Premier League) and Real Betis (Europa League). Following Postecoglou's departure, it means Nottingham Forest will be out to appoint their third manager of the season, having sacked Espirito Santo just three matches into the campaign.At the moment, Fulham boss Marco Silva and Everton’s Sean Dyche are heavily linked as potential replacements. The 60-year-old had previously managed Tottenham Hotspur for two seasons.