Oh yeah, that's him alright.
7’4″ NBA Player Shows Up For Halloween Game Dressed As Slenderman

These are a couple videos of 19-year old French basketball star Victor Wembanyama showing up for his San Antonio Spurs Halloween game against the Phoenix Suns dressed as internet meme character, Slenderman. His build really lends itself to the character. Me? I could never pull off Slenderman. Mostly because I’m not slender. I’d make one hell of a Homer disappearing into the bushes though.