Speculation continues to mount over Mbappe's future, amid interest from Madrid, Arsenal and others in the Monaco teenager.
The 18-year-old – who scored 26 goals in all competitions last season – admitted Friday he was unsure if he will remain at Ligue 1 champions Monaco in 2017-18.
And the France international trolled fans later in the day amid transfer talk.
Grande annonce pic.twitter.com/Yyynx51VQF— Kylian Mbappé (@KMbappe) July 14, 2017
Mbappe posted a video on Twitter, with the caption 'Grande announce' – sparking frenzy among supporters on social media.
But as the video continued after a seemingly heartfelt opening, it turned out Mbappe was only showing off his new Nike boots.