As Erik ten Hag pulled one of Manchester United’s rising stars aside after May’s FA Cup final triumph, the sight was a source of deja vu for Red Devils supporters. The now infamous chat between Ten Hag and Kobbie Mainoo after Manchester United had vanquished Newcastle in 2023’s Carabao Cup triumph was the moment many realised just how highly the Dutchman rated his teenage midfielder. Mainoo, some 15 months later, was back at Wembley. On the team sheet this time, and the scoresheet too, slotting home the winner following that ‘perfect’ Bruno Fernandes assist. If 2023 was the beginning of Mainoo…