By Sean Walsh Manchester United manager Erik ten Hag blamed a lack of ‘belief’ after going behind early for his side’s 3-0 defeat at home to Tottenham Hotspur. Ange Postecoglou’s side ran out undisputed winners on Sunday having put in one hell of a performance at Old Trafford, where the hosts had to play the second half a man down after Bruno Fernandes was sent off. Tottenham took the lead inside three minutes when Micky van de Ven sprinted 70 yards right through United’s midfield and defence before squaring for Brennan Johnson to tap in. The Red Devils conceded an eerily similar goal in Wedne…