Town defeated MK 1-0 at Stadium MK on December 6 2014 in a game which never actually counted.
That was because the FA ordered the tie to be replayed due to Chesterfield fielding an ineligible player.
The Spireites did not have written permission from Wolverhampton Wanderers to allow on-loan defender Georg Margreitter to appear in the match.
In the replayed game – which most likely would never have taken place these days and seen MK awarded the tie – played on 2 January 2015, Chesterfield also won 1-0.
Here we take a look at what happened to the players who started the original tie.
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5. Tendayi Darikwa
In May 2015, Tendayi Darikwa won four awards at the Chesterfield end of season awards, form which earned him a move to Championship club Burnley weeks later. Spells at Forest, Wigan and in Cyprus followed. Darikwa is now at Lincoln City. Photo: James Williamson
6. Sam Morsy
Sam Morsy left Spireites on his journey to the top on 28 January 2016 when he joined Wigan Athletic. After 155 games for Wigan, he joined Middlesbrough. But the move of his career proved to be joining now Premier League side Ipswich Town in Aug 2021, with Morsy playing a key role in their rise from League One. Photo: James Williamson
7. Jay O'Shea
Jay O'Shea joined League One rivals Sheffield United on loan to the end of the 2016/17 season. He scored three goals in ten appearances to help the Blades win promotion. He was released by Chesterfield upon his return to the Proact Stadium in May 2017. O'Shea joined Bury on a two-year contract in July 2017 after turning down Sheffield United. O'Shea signed with A-League club Brisbane Roar in June 2019, where he is still playing, Photo: James Williamson
8. Gary Roberts
Gary Roberts joined Portsmouth in June 2015, stating that manager Paul Cook was the main reason for him signing for the club. It has proved to be a solid team down the years with Roberts also joining Cook at Wigan before being part of his backroom team at Ipswich Town and now at Spireites after he hung up his boots. Photo: James Williamson