Sam Hoskins struck from the spot but Josh Grant and Antony Evans turned the game around with two goals in six second-half minutes. Here are our player ratings from Town's below-par showing at the Memorial Stadium....
1. Lee Burge
Made some good saves, especially from Taylor in first half stoppage-time, but Cobblers already had a mountain to climb by that stage. His rash challenge on Collins was ill-judged and ultimately very costly... 6 Photo: Pete Norton
2. Jordan Willis
Didn't do much wrong in the first half - even Martin's goal was more down to a brilliant finish than anything else - but he's played a lot of minutes after a long time out and therefore was the obvious choice to come off at half-time as Brady moved to a back four... 6 Photo: Pete Norton
3. Sam Sherring
A touch unfortunate when Collins' cross evaded him and was turned in by Martin. Missed a big chance to level moments later, although credit to Cox for an excellent save. Put out a few fires as Rovers threatened on the break in the second half... 6.5 Photo: Pete Norton
4. Manny Monthé
Used his strength and recovery pace to good effect against Collins first half, and then guided a deft header into the bottom corner for his first Cobblers goal. Wasn't to be the start of a comeback though... 7 Photo: Pete Norton