Stags won 3-1 in a penalty shoot-out following a 2-2 draw in normal time, courtesy of Lucas Akins’ stoppage-time leveller.
Chris and Jeanette Holloway captured these pictures of the home fans enjoying the night. Take a look and tag in anyone you know.
You can get all the latest reaction to this – and the weekend fixture at Gillingham – here.
You can get all the latest reaction to this – and the weekend fixture at Gillingham – here.
5. Mansfield Town 2 Peterborough 2 (3-1 pens)
Mansfield Town fans enjoy watching their side progress in the EFL Cup. Photo: Chris and Jeanette Holloway
6. Mansfield Town 2 Peterborough 2 (3-1 pens)
Mansfield Town fans enjoy watching their side progress in the EFL Cup. Photo: Chris and Jeanette Holloway
7. Mansfield Town 2 Peterborough 2 (3-1 pens)
Mansfield Town fans enjoy watching their side progress in the EFL Cup. Photo: Chris and Jeanette Holloway
8. Mansfield Town 2 Peterborough 2 (3-1 pens)
Mansfield Town fans enjoy watching their side progress in the EFL Cup. Photo: Chris and Jeanette Holloway