United beat Liverpool 3-0 in Tuesday night's play-off, semi-final at Old Trafford with Larnell Cole claiming a hat-trick.
We've played United four times in the Barclays U21 Premier League this season.
We lost 2-0 at Altrincham in August but then won 4-2 at the Training Centre on the way to winning National Group Two in phase one.
The results were the same as we claimed the Elite Group title in phase two. We won 3-1 at the Training Centre in February before United turned the tables in March, this time a 1-0 loss at the Salford City Stadium.
We progressed to the final thanks to a thrilling, last-minute 3-2 win against Everton in our semi-final at the Lane on Monday.