The Northampton Town under 18s continued their EFL Youth Alliance programme with a trip to Sutton United on Tuesday.
The home side took the lead on 16 minutes with their first opportunity of the game, the ball being rolled past keeper James Dadge despite the best efforts of Licorish-Mullings who nearly got back to clear.
The Cobblers were level eight minutes later when Kai O'Keeffe was brought down inside the area. O'Keeffe picked himself up to score from the spot.
The same player was close again just a minute later but his shot from 20 yards was over the bar.
On 27 minutes Jacob Scott made a break from midfield but he couldn't quite latch on to Reuben Wyatt's pass before Shane Goddard's side were even closer five minutes later, winning the ball back high up the pitch before O'Keeffe cut on to his right foot and his blistering effort came back off the cross bar.
James Dadge made a good save from a wide free kick ten minutes before half time as the first half ended level at 1-1.
The Cobblers took the lead early in the second half. Brad Smith-Howes' deft touch released Wyatt and his low cross was finished at the back post by O'Keeffe for his second of the game.
The home side were soon back on level terms though, scoring from a free kick via the inside of the post.
Substitute Irwin had an instant impact as he caused confusion in the Sutton area from a wide free kick. The ball was hooked to the back post for Josh Tomlinson to apply the finish and give the Cobblers a 3-2 lead with fifteen minutes to play.
After a lengthy delay for treatment to Duggan, seven minutes of stoppage time were added and Sutton equalised in that added time to claim a point with a header from a cross in to the area.
Cobblers: Dadge, Smuth-Howes, Lekuti, Hill, Tomlinson, O'Keeffe, Wyatt, Duggan, Hart, Scott, Licorish-Mullings
Subs: Bald, Amidi, Irwin, Rayfield, Jenkins