Paul Merson has issued his verdict on the performance of Omari Forson as the 19-year-old made his full debut for Manchester United in their defeat to Fulham on Saturday. Manchester United saw their five-game winning run come to an end at Old Trafford. A stoppage-time winner from Alex Iwobi decided a contest in which the visitors were superb. Of course, the young players within the Manchester United squad have given fans reason for optimism of late. Kobbie Mainoo has been outstanding, and Rasmus Hojlund looks to be the real deal. Paul Merson reacts as Omari Forson makes full Manchester United d…