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. ..
9. Miguel Ngwa
Played on the left side of midfield and his pace and skill on the ball caught the eye from very early on. Was ultimately shackled effectively by Brighton's defenders but there was more than a glimpse of his talent... 7
10. Nicke Kabamba
He was bright in moments before producing a lovely finish for his first Cobblers goal late in the first-half. Also created another good chance when slipping in is strike partner... 7
11. Benny Ashley-Seal
His good work led to Kabamba's goal, but otherwise this was not a performance that will give the manager many headaches. Ball didn't stick often enough up top and poked his best chance wide... 6
12. Tommy Curry
Became the seventh teenager to feature for Cobblers on the night when replacing Ngwa... 6