Jake Paul isn't worried one bit about having to go 10 rounds with Nate Diaz in August ... and he made that crystal clear by smoking a heater during a recent training session!!
The Problem Child shared the funny footage to his Instagram page on Monday ... showing him hitting the bag and ripping a cigarette while training in Puerto Rico.
"Getting my lungs ready for 10 rounds," Paul said. "August 5th. #PaulDiaz"
The two sides recently agreed to make the fight longer than the initial eight-round agreement ... which will make it the longest bout in both Paul and Diaz's careers.
Now, it's likely the 6-1 boxer pulled a Bill Clinton and didn't inhale anything ... but the message was still pretty obvious -- he's ready to go all 10 rounds against the former UFC star.
One thing's for sure, though -- Jake's opponent is no stranger to smoking, and he's very open about his love for cannabis ... so it could very well be a shot at Diaz.
Nate Diaz smoking with USADA now. Look at how far we’ve come pic.twitter.com/AORdgWOm3e
— Spinnin Backfist (@SpinninBackfist) August 26, 2022
The fight goes down in Dallas in just over a month ... so Jake's lungs have a bit of time to recover before entering the ring at American Airlines Center.