Kion Etete and Paul Lewis were the men on target as Town twice surrendered the lead to be pegged back by their League One visitors. Here are our player ratings from an entertaining cup tie at Sixfields...
5. Ali Koiki
Smith looked to be his man when the United forward headed in to level. A little muted compared to recent outings with his attacking instincts largely stifled, though used the ball well when he got it... 7
6. Shaun McWilliams
It's no coincidence that he's always in the right place to land on second balls and prevent opposition counter-attacks. Such good anticipation. His improved quality in possession was again evident here too, combining especially well with Pinnock... 8
7. Jack Sowerby
Less influential than he has been in recent games although his role here was more about staying disciplined and disrupting things in midfield rather than being especially expressive on the ball. Was still involved in a few nice passages as Cobblers countered effectively... 7
8. Mitch Pinnock
Flickered in and out of the game but provided touches of real class. One potent pass released McWilliams into the box and then sprayed a wonderful pass out to the opposite wing to start a move that ended with his overhead kick being well-saved. Also fizzed in a cross that Hoskins fired wide... 7.5