The Belgian winger will not go to Euro 2016 as a player.
The 26-year-old, along with Everton ace Kevin Mirallas, was omitted from Marc Wilmot's initial 24-man group, having managed just 10 Premier League starts under Mauricio Pochettino this season.
Chadli, who played a small role in the Red Devils' qualifying campaign, admitted his frustration but vowed to support his nation nevertheless.
On Sunday, Spurs travel to Newcastle United knowing that defeat will not be tolerated by fans, given that it would most probably lead to Arsenal - who host an exceptionally poor Aston Villa side at the Emirates on the final day of the season - pipping them to second spot.
It has been 21 years since Tottenham finished above their bitter North London rivals, and the legendary Graham Roberts has challenged Chadli to excel on Tyneside and show Wilmots what he'll be missing out on in France.
@NChadli show belgium What there missing on Sunday Nacer.— Graham Roberts (@GrahamRoberts4) May 12, 2016
Pochettino's side, who sit two points clear of the Gunners, effectively only need a draw to secure second spot behind champions Leicester City, based on the fact their goal difference is significantly stronger than Arsenals.
Chadli, however, is unlikely to start, with Erik Lamela and Son Heung-min expected to line up on the flanks.