Arsenal supporters teased new Nottingham Forest boss Ange Postecoglou with chants declaring he will be “sacked in the morning” as they renewed hostilities with the former Tottenham manager on Saturday. The Gunners fanbase was quick to taunt Postecoglou, who replaced Nuno Espirito Santo in the Forest dugout earlier in the week, as they ran out 3-0 winners at the Emirates Stadium.