Tottenham Hotspur wrapped up the Premier League season with a 3-0 win at Sheffield United on Sunday. Ange Postecoglou guided Spurs to a fifth-place finish in his debut campaign, meaning the north Londoners will be back in the Europa League next season. A Dejan Kulusevski brace and Pedro Porro ensured Postecoglou signed off the season with a victory. But Tottenham players headed off for a 22-hour flight after their clash at Bramall Lane and it wasn’t for their holidays. Postecoglou’s men were involved in a post-season friendly against Newcastle United yesterday in Melbourne. It saw the Spurs bo…