Having hauled themselves to within one win of safety, Chris Wilder's side know they have to come up with at least one victory from two matches against teams who also occupy positions in the bottom half of the League Two table.
The Cobblers manager was pleased with his side's spirit as they gained another vital point at Morecambe on Saturday afternoon in a 'tight, cagey' game played in difficult conditions.
AFC Wimbledon are first up and the Dons will be in high spirits after coming from two goals down to defeat Cheltenham in a thriller at the weekend.
Manager Neal Ardley said afterwards: "We didn't fold, we stayed positive, the substitutions worked well and we had 30 crosses and 17 attempts, which is what we worked on and we got our rewards for that."