Goss corner towards the goal and Ioannou sending a Tom Hill cross against a post.
Harrop continued to impress by making a goalline clearance and was too high with a free-kick attempt after Fletcher was fouled. Two goals inside a minute extended the lead with substitute Ruairi Croskery supplying a precise finish after Evans' crunching tackle allowed Goss to advance forward. Seconds later, Wilson claimed the goal his performance deserved with a powerful solo run that preceded a clever shot past the exposed Dutton.
Wilson hit the woodwork for a second time with a thunderous drive and, after Croskery went close to his second, the United captain utilised his searing pace again to tee up Devonte Redmond but the No.11 was unable to hit the target from an inviting position.
United: O'Hara; Evans (Reid 78), McConnell, Ioannou, Barber; Harrop, Goss, Willock (Croskery 62), Redmond; Fletcher, Wilson. Subs not used: Henderson, Rashford.