Will Grigg was unable to prevent MK Dons slipping out of the FA Cup for the second time this season after a 1-0 defeat at home to Chesterfield.
The Dons went 1-0 down just before half-time when Gary Roberts swept home before Will was introduced with half an hour remaining.
Despite MK's best efforts they were unable to find a way past Tommy Lee in the visitors goals and it was The Spirites who set up a Third-Round tie with Scunthorpe United.
Friday's match was Will's 27th appearance of a season long loan at Stadium:MK where he has scored nine goals.
Wycombe Wanderers returned to the top of the Sky Bet League Two table after a 1-0 win at home to struggling Hartlepool United.
Fred Onyedinma scored the only goal of the game just before half-time as Alfie Mawson helped The Chairboys to a second consecutive clean sheet and seventh league game without defeat.
So far this season Alfie has been an almost ever present at the heart of the Wycombe defence making 25 appearances and scoring once.
In the Vanarama Conference Emmanuel Oyeleke couldn't halt Aldershot Town's slide as they lost 2-1 at home to rock bottom AFC Telford.
The midfielder played the full 90 minutes as Andy Scott's side fell two behind to a Josh Hancock header and Joe Oastler's own goal.
Brett Williams scored for the hosts late on to give them hope but it was not to be as they suffered a sixth defeat in seven and to remain 18th in the table.
Kieran Morris's fine start to life at Stourbridge continued at they kept a third clean sheet in six games to beat Witton Albion 3-0 at Amblecote.
Exodus Geohaghon put the hosts ahead in the ninth minute before The Glassboys added further goals from Kayelden Brown and George Bowerman to wrap up the three points.
The result leaves Stourbridge 10th five places and six points outside the play-off shake up.