Manchester United fans have shared their telling verdicts after Marcel Sabitzer dropped a masterclass for Borussia Dortmund in the Champions League on Tuesday evening. Marcel Sabitzer spent the second half of last season on loan at Manchester United after the Red Devils brought him to Old Trafford from Bayern Munich. Erik ten Hag identified Sabitzer as a short-term midfield option for his side after injury knocks to Christian Eriksen and Scott McTominay at the time. Despite United’s initial deal not including an option to buy, reports later emerged that the Red Devils could sign the Austrian m…