He may not be playing at Chelsea at the moment, but Blues fans have been very impressed with the performance of Ethan Ampadu against Tottenham Hotspur.
The Welsh international started at the heart of the RB Leipzig defence in the absence of Arsenal and Tottenham transfer target Dayot Upamecano, with the German side winning 1-0 in the first leg of the Champions League last 16 tie.
Ampadu was part of a makeshift back line for Leipzig, who had problems defensively due to injuries and suspensions, but he managed to help shackle Tottenham's attack.
Spurs were without the injured Harry Kane and Heung-min Son, but they struggled to create chances, with Ampadu particularly impressive during the game.
And his performance has certainly got Chelsea fans talking, and waxing lyrical about the 19-year-old.
Here's what they have been saying on social media about the teenager.
Ampadu is currently on a season-long loan at RB Leipzig, having been allowed to leave on a short-term basis by Frank Lampard in the summer.
This was only his seventh appearance since joining RB Leipzig, with the Welshman having a mixed time in Germany so far.
But with more performances like this, Chelsea fans will be hoping that Lampard takes notice ahead of next season.
