With Laurent Koscielny on his way out of Arsenal, there have been a number of names linked with taking his place at the Emirates Stadium - the most recent of which is RB Leipzig star Dayot Upamecano.
Rumours of a big-money bid from the Gunners have emerged, but not everyone is too familiar with the 20-year-old.
Here are six things you need to know about Upamecano.
He Has Been in the Limelight for Years
Learning of Arsenal's interest won't come as too much of a surprise to Upamecano, who has been tracked by pretty much every team on the planet for years.
Upamecano's high potential comes as little surprise, and there could be a few more heavy hitters involving themselves in the situation if he becomes available.
Arsenal Aren't One of His 'Dream' Clubs
Unfortunately for Arsenal, Upamecano appeared to overlook them when he was asked about his future ambitions.
That interview was back in 2018, so maybe things have changed now?
He's Insanely Quick
It doesn't take a genius to work out Upamecano's strengths. He's tall, he's strong and he boasts the kind of speed which most centre backs can only dream of.
In fact, back in 2017, the Bundesliga revealed on their website that Upamecano had actually clocked a top speed faster than current Gunners star Pierre-Emerick Aubameyang, and he has even used that agility to catch up with the Gabonese international during a match - something which Bundesliga fans still rave about to this day.
That's fast. That's really, really fast.
He Loves Playing With the Ball at His Feet
Modern centre backs need to be comfortable on the ball, and Upamecano certainly fits the bill here.
His speed and defensive awareness help him recover possession with ease, but that's just the beginning for Upamecano. The Frenchman will always look to pick out a pass and rarely settles for a simple ball to his centre back partner.
Instead, he is comfortable stepping up into midfield, dribbling past players before involving himself in the attack. It's a very similar style to Barcelona wonderkid Frenkie de Jong, who made waves across Europe with his tendency to drift between the lines.
He Looks Up to Raphael Varane
France have a ridiculous number of supremely talented centre backs, of which Raphael Varane is arguably the best. Understandably, that's not news to Upamecano.
He told UEFA:
Comparisons to the Real Madrid star are clear to see right now, but it seems as though Upamecano does not want to be seen as 'The Next Varane'. He wants to play his own game and earn his place in history.
He Has Worked Hard to Reach This Point
He may be a real talent right now, but that wasn't always the case for Upamecano - just ask his former coach Romain Bultel.
Bultel, who worked with a 14-year-old Upamecano at Evreux, said: