If there was one unequivocal positive in Manchester United’s first three Premier League games of the season, it was the performance of new signing Noussair Mazraoui. He has now continued in that rich vein of form for his national team as well in a battling, all-action display in Morocco’s 4-1 vs Gabon. Noussair Mazraoui, who arrived from Bayern Munich for a fee of around £15 million, has been a revelation at Old Trafford. He has brought remarkable composure combined with grit to the right side of defence and played all three games reliably, going some way to soothing the “injury prove” narrati…