Harvey Knibbs, Sam Smith and Ben Worman all scored as United eased to victory, with Danny Rose' s late consolation one of few positives for Town. Here are our player ratings....
13. Mitch Pinnock
Town looked better with him on the pitch, though the tie was dead and buried by that point... 6
14. Nicke Kabamba
He did OK as a late sub but the way Cobblers play - going for the aerial route rather than into feet - does not suit to his strengths... 6
4 / 4