Rhys Oates gave Stags a 1-0 lead going into half-time before the Cobblers turned it around to take the points.
Stags were backed by a packed away end with some of the fans who were there featuring in this gallery. Take a look and see who you know.
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13. Northampton 2 Stags 1
A poor second half was costly as Mansfield Town let a half-time lead slip away. Photo: Chris and Jeanette Holloway
14. All rights reserved. No unauthorised use of the photo is permitted without permission from 'The Bigger Picture.media' : Northampton 2 Stags 1
A poor second half was costly as Mansfield Town let a half-time lead slip away. Photo: Chris and Jeanette Holloway
15. Northampton 2 Stags 1
A poor second half was costly as Mansfield Town let a half-time lead slip away. Photo: Chris and Jeanette Holloway
16. Northampton 2 Stags 1
A poor second half was costly as Mansfield Town let a half-time lead slip away. Photo: Chris and Jeanette Holloway