Manchester United possess two of football’s great young talents right now in Alejandro Garnacho and Kobbie Mainoo. Carrington has been serving Erik ten Hag with the goods of late with Alejandro Garnacho and Kobbie Mainoo becoming stars in successive campaigns. Manchester United saw Mainoo go from the crown jewel of the academy to the club’s and England’s best midfielder in merely eight months – an incredible rise for Mainoo. Now though, Mainoo is gearing up for the biggest game of his career and the chance to make history with England. In the build-up, Wayne Rooney has had plenty to say about …