Jake Paul Lands Sports Illustrated 'Power List' Cover

Jake Paul is a Sports Illustrated cover athlete -- the Problem Child just added to his growing list of accomplishments ... landing the big spotlight for the outlet's "Power List" issue.

S.I. published its submissions for the "50 most influential figures in sports" on Thursday ... where it highlights the biggest athletes, dealmakers, executives, icons and leaders and influencers over the past year.

The YouTuber-turned-boxer is front and center for the issue ... showing him throwing a punch in an underwater photoshoot.

It's a huge honor for Paul, who turned social media boxing into a multi-million dollar business ... even starting his own Most Valuable Promotions company.

Paul's also brought a bunch of new fans to the sport of boxing ... selling a ton of Pay-Per-Views for his fights against Tommy Fury, Tyron Woodley, Ben Askren and more.

We spoke with Jake about landing the cover ... and he said it's a "surreal" experience.

"It doesn't make any sense, but I've worked my ass off to get to this position, and I couldn't have done it without my supporters from back in the Vine days, from my Disney Channel fans, my YouTube fans," Paul told TMZ Sports.

"I really owe it all to them and their support of me through each lane and each vertical of my life as I've gotten older."

"Through all the negative, through all the hate, through all the things and the people trying to tear us down -- we've risen to the occasion and we've overcome it every single time," he added.

"And that, to me, is what means the most and this feels like a staple, monumental moment in my career and to be even considered for it is a humbling thing and I can't believe it's my life."