Austin Rogers is freaking out over the stunning abilities of Ken Jennings, Brad Rutter and James Holzhauer ... the "Jeopardy!" sensation says these G.O.A.T.s are the LeBron's of trivia.
We got Austin -- who captivated America back in 2017 with an impressive 12-game winning streak on Alex Trebek's show -- in Harlem, and he couldn't stop gushing over the trio duking it out for a million-dollar prize.
Austin took home a whopping $411,000 during his run at the top, but he says he's been blown away watching Ken, Brad and James make some extremely difficult questions look like child's play .