Rio Ferdinand has admitted he’s unsure how Ange Postecoglou scooped the Manager of the Year prize at the London Football Awards. The Tottenham manager was honoured with the award at last week’s ceremony as he pipped both Mikel Arteta and David Moyes to the prize. It comes as Ange Postecoglou has led Spurs to fifth place in the Premier League, with the Aussie hoping to deliver a top-four finish in his debut season. But Postecoglou scooping the award has led to confusion on Ferdinand’s part, with the Manchester United legend suggesting the Spurs boss will have already sent it to West Ham’s Moyes…