Thelo Aasgaard and Jonny Smith were both on target before Tom Eaves pulled one back. Here are our player ratings...
5. Nesta Guinness-Walker
Wigan repeatedly threatened down his side but that mostly owed to the fact he was outnumbered and had little help from team-mates. Did well considering, even if he did let Smith inside to curl home. Covered tons of ground up and down the left flank. Assisted Eaves' goal and his defensive work ensured Cobblers still had a chance right until the end... 7 Photo: Pete Norton
6. Samy Chouchane
His decision to dive in on halfway exposed the defence as Wigan broke the deadlock. Guilty of too many basic errors, though was far from the only offender... 5 Photo: Pete Norton
7. Will Hondermarck
Unable to get any kind of grip on the game in the first half as simple passes kept going astray and Wigan at times strolled through midfield. Did improve and lasted the full 90... 5.5 Photo: Pete Norton
8. Cameron McGeehan
Pinnock's first half cross was just too high and that was the story of his night. Nearly but not quite... 5.5 Photo: Pete Norton