Elliott Whitehouse netted a late equaliser to rescue the Blades a share of the spoils against Leicester City at Shirecliffe on Monday afternoon.
Harry Panayiotou had earlier given the Foxes the lead just after the interval when he headed home Jacob Blyth's cross at the back post.
In what was an evenly-fought contest throughout, Chris Morgan felt a draw was a fair result in the end and reserved special for all three substitutes.
Speaking after seeing Whitehouse apply the finishing touch after good work in and around the box by Joe Ironside, Morgan commented: "It was an excellent game, a proper fixture between two very good sides that went at each other from the first minute to the last.
"Everyone would agree a draw was about right it was a fantastic advertisement for U21s football.
"In terms of development it was a real worthwhile 90 minutes and all three youngsters who replaced the senior players had a positive affect on the game to enable us to push on and get a leveller.
"The application and desire of both teams was fantastic and the fixture wouldn't have looked out of place being played at 3pm on a Saturday afternoon. It was a real eye opener for a lot of our players and it is this type of performance that will benefit the youngsters in the future."
Blades: Dewbury, Hodder, M. Williams (Whiteman 67), Pemberton, Kennedy, Barry, Smith, Whitehouse, Porter (Eyre 76), Cresswell (Scarisbrick 62), Ironside.