Darren Pratley's close-range finish was followed by an own goal by Jack Sowerby just five minutes later. Here are our player ratings...
9. Sam Hoskins
As good as Amos' save was, he will feel he should have put Cobblers ahead just a few minutes in. Missed another half chance in the second-half and his decision-making in the final third was hit and miss... 5.5 Photo: Pete Norton
10. Ricky Korboa
Not given the space or freedom that he thrives on and his threat was largely nullified by the visitors... 5.5 Photo: Pete Norton
11. Danny Rose
Not sure how he ended up marking Inniss but it was a mismatch of epic proportions and led to Charlton's opener. No clear chances for him at the other end but looked to have a strong penalty claim turned away... 6 Photo: Pete Norton
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