Amad began Manchester United’s FA Cup quarter-final as a substitute, before taking centre-stage. The way Amad’s season was going, the Ivorian needed a major stroke of luck to get some game time. He was overlooked for a start last month for Omari Forson, a disappointing snub for the former Atalanta man. Forson was on the bench against Liverpool, but this time Amad was chosen, sent on as the fourth substitute, in the 85th minute And that’s when the luck really turned in Amad’s favour. What would have been a five minute cameo was extended into a 35-minute showing, with the game going to extra-tim…