Almost anyone who has watched Antoine Griezmann over the past couple of years will vouch for the fact he's virtually unstoppable.
The Frenchman is one of the very, very few players who is mentioned in the same breath as Lionel Messi and Cristiano Ronaldo, and the general consensus is that when the duo eventually retire, he could well go on to become the best player in the world.
Of course, the success the 25-year-old has enjoyed is always going to attract a few haters.
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What is a little unexpected, though, is that his incredible performances have not gone down well with his former France teammate Franck Ribery, admittedly a player with whom he only played one game.
Ribery retired from France duty in 2014, but rather than praising the Euro 2016 Golden Boot winner, who was instrumental in guiding Les Blues to the final, the Bayern Munich star had a few choice words.
"He's not a world-class player yet because he still hasn't repeated his level of performance consistently over time," he told Bild.
While Ribery also appeared to dismiss "one good season" from the Atletico attacker, he also missed out one crucial detail which could explain why he's sounding so bitter.
"There's no doubt he's playing well for Atletico, but Bayern are on another level," he added. This is the same Atletico and the same Bayern who met in last season's Champions League semi-finals. Obviously, we don't need to remind you who scored the away goal that sent Atleti through.
However, what's perhaps most impressive about Griezmann is the way he's responded to the criticism, hitting back in the most diplomatic way possible.
"I will continue working," he told Eurosport.
"As he says, we'll see at the end what kind of player I am, but I know I'm on the right track.
"Everyone has an opinion. To my father, for example, I'm the best player in the world. To the fans of Atletico, too."
It's great to see Griezmann deal with the pressure that is inevitably coming his way so well, and it hasn't gone unnoticed in Madrid.
"He has matured very well in the time he has been with us," his manager, Diego Simeone, told reporters.
"I am not worried about pressure on him. He responded in a brilliant way to what Ribery said. So there is nothing more to add."
Is Ribery right - does Griezmann still need to prove himself? Have your say in the comments.