The Tottenham Hotspur defender has reacted to his country's loss to Wales on social media.
It was a former Spurs star in Gareth Bale that put Vertonghen's men to the sword as the Welsh beat Belgium 1-0 at the Cardiff City Stadium on Friday night.
And Wales now sit top of Group B in the qualifying tables for Euro 2016, leaving Belgium three points behind in second.
But Vertonghen, the only Tottenham star involved against Wales (Nacer Chadli and Mousa Dembele were on the bench) has taken to Twitter to promise his nation's supporters that the Belgians will be back.
From a personal perspective, the 28-year-old will no enjoy a 'small break' before focusing on pre-season preparations with Spurs.
Not the end that we wanted but we'll bounce back! Enjoying a small break now before we focus on preseason again!— Jan Vertonghen (@Jan_Vertonghen) June 13, 2015
Vertonghen endured a disappointing season with Tottenham in the Premier League last term, not producing his best and failing to use his experience to organise his back four.
The Belgian is still the north London side's best defender and a footballer with plenty of ability. The problem, though, lies in putting that ability to use - and showing the requisite leadership as one of Spurs' most senior players.