Tottenham Hotspur fans were singing about their north London rivals Arsenal on Sunday afternoon in their win against Sheffield United. Ange Postecoglou‘s first campaign as the Tottenham manager was capped off with a comfortable 3-0 victory over the Blades at Bramall Lane. A recent run of poor form has seen Spurs forced to settle for a fifth-placed finish and Europa League qualification. This is something which may have frustrated the Australian manager who cast an angry figure last week following the game against Manchester City. Postecoglou issued a very honest message to the Tottenham fans f…