The young winger put in an impressive performance as Tottenham Hotspur overcame Paris Saint-Germain.
Tottenham Hotspur spent so long securing the signature of Georges-Kevin N'Koudou that the club's fans would have been forgiven for thinking they had signed a bona fide star.
However, 12 months on from Spurs' prolonged but ultimately successful pursuit, the 22-year-old has struggled to make any significant impact at White Hart Lane.
Last season, N'Koudou managed just eight brief Premier League appearances and his only start - in the EFL Cup against Liverpool - left a lot to be desired.
Some of his showings from the bench showed glimpses of his talent but Tottenham boss Mauricio Pochettino was clearly not convinced that he could do it on a consistent basis.
So it will have been quite a shock when N'Koudou not only started against Paris Saint-Germain on Saturday but also excelled against one of the world's best right-backs.
Dani Alves may not be as young as he used to be, but he knows how to deal with flying wingers. The problem for the Brazilian, who recently snubbed a move to England in favour of a switch to the French capital, was that N'Koudou was in no mood to be taught a lesson.
The Tottenham winger will know he needs to hit the ground running this season or risk being deemed surplus to requirements, so his performance in pre-season speaks of better things to come.
Tottenham are in desperate need of a quality winger and there are murmurings, albeit from a minority of fans, that N'Koudou could be the answer after all.
He needs to perform consistently, and this was only a pre-season friendly, yet the way the Frenchman went up against Alves and came out on top speaks volumes for his character.