Town recovered from Tyler Walker's early strike to dump out their Championship hosts as Kion Etete capped a fine debut display with two goals. Here are our player ratings from a great night at the Ricoh Arena...
5. Ali Koiki
Another display full of promise. There were examples of both his defensive nous and attacking flair as he dominated the left-hand side. Delivered some good set-pieces too... 8
6. Shaun McWilliams
He was a big reason for why Cobblers were able to reverse the tide and get on top midway through the first-half, grabbing a foothold in midfield and dominating the middle of the pitch. Slid in for two crunching tackles late on - his trademark - and simply did not allow Coventry to build any momentum... 9
7. Paul Lewis
He also played a role in Cobblers getting on top from 15 minutes onwards, albeit to a slightly lesser extent. Played some nice passes through the thirds and was a threat at set-pieces... 7.5
8. Scott Pollock
Struggled out on the left-wing initially but shone when moved through the middle, his preferred position. Picked up some great pockets between the lines and linked well with Etete and Rose. Went close a couple of times... 8