MK Dons manager Karl Robinson was counting the cost of the 1-0 win that ended Chesterfield's unbeaten start to the season.
A second-half strike by Benik Afobe gave MK Dons a 1-0 win over Chesterfield to end the hosts' unbeaten start to the season.
Team news for Tuesday's League One clash between Chesterfield and MK Dons at the Proact Stadium.
Darren Ferguson watched his Peterborough side defeat rivals MK Dons and then revealed he has made bids for four new players.
Kyle Vassell came off the bench to become Peterborough's hero as they saw off fierce rivals MK Dons 3-2 at London Road.
Team news for Saturday's League One clash between Peterborough United and MK Dons at London Road.
Karl Robinson was left revelling in a 'dream' tie as MK Dons drew Manchester United in the second round of the Capital One Cup.
Louis van Gaal's Manchester United will face MK Dons in the second round of the Capital One Cup.