You're looking at the most expensive basketball card ever sold -- and it ain't Michael Jordan or LeBron James.
It's an ultra-rare Luca Doncic rookie card -- a 1-of-1 that features the NBA Logoman patch from a game-worn Dallas Mavericks jersey PLUS a perfect signature with blue ink.
And it just sold for $4.6 MILLION!!!!
Here's the deal ... the card was originally pulled from a box of 2018-2019 Panini National Treasures Basketball in May 2019 during a live pack break at the Layton Sports Cards shop in Altamonte Springs, FL.