Town, who fielded a team with an average age of just 20, went ahead through Nicke Kabamba's first-half finish, but Brighton scored twice in the final 20 minutes. Here are our player ratings from a record-breaking night at Sixfields. ..
5. Josh Flanagan
Tough gig out of position at left-back up against some speedy, technically-gifted opponents, but did not look out of place. Defended excellently and strong physically for his age... 7
6. Liam Cross
Lively on the right and always looked to be direct, running at and past Brighton's defence. Showed a turn of speed to get beyond his marker on a number of occasions, and delivered a few good balls into the box... 7.5 CHRON STAR MAN
7. Peter Abimbola
Grew into the game after a quiet start and clearly has technical quality in central midfield. Eyes lit up when the ball fell to his feet 20 yards but couldn't convert, and went closer still when McGill got down well to deny him again... 7
8. Scott Pollock
Involved in Town's best move of the match when Ashley-Seal steered wide. Illustrated his hugely impressive technical quality when using both his left and right foot to whip in a series of wicked corners... 7