Tottenham Hotspur's newest addition was clearly paying attention to what was happening at White Hart Lane this weekend.
The 18-year-old attacking midfielder signed for Tottenham from the Dons for a reported £5million in January, but he will remain on loan at the League One side until the end of the season.
Alli has recently been side-lined with an ankle injury, forcing him to watch MK Dons’ match against Notts County rather than participate in it.
But he was clearly happy with what was going on at his parent-club, who raced into a two-goal lead inside the first 13 minutes courtesy of goal-scorer extraordinaire Harry Kane.
Keeping it short and sweet, but with a message sure to put a smile on every Tottenham supporter’s face, Alli wrote, “COYS”.
It may be a while longer before Spurs fans get to see the young talent in action for them, but it is clear he already has half an eye on North London and the club he should one day excel for.