ANYTHING Jake Paul can do, Nate Diaz can do better.
The YouTuber, 26, and the former UFC star, 38, are set to go head-to-head on August 5.
RealFightIncNate Diaz is seen smoking while he throws punches in the ring during a training session[/caption]
An exhibition boxing contest between the feuding pair will take place in Texas.
And Marijuana advocate Diaz is preparing for the fight by smoking in the ring.
The Californian threw some jabs as he puffed on what appeared to be a spliff.
In video shared by Real Fight Inc on Twitter, Diaz appears to be in the zone as he shows off his punching power.
“Haha He Is Going To Get Sparked,” one fan commented.
“How’s this fight even happening just embarrassing. Couldn’t be more obvious he’s going for the pay check,” another wrote.
A third shared: “Jake sleeps him round 2 max.”
The clip comes just a month after his opponent Paul was seen with his cigarette in his mouth as trained on a speed bag.
The Problem Child captioned a video: “Getting my lungs ready for 10 rounds. August 5th.”
Paul was beaten for the first time in February, losing a split-decision in Saudi Arabia to Tommy Fury, 24.
But he snubbed a rematch to face Diaz instead, who will be his FOURTH opponent formerly in the UFC.
Paul has wins over ex-MMA champions Ben Askren, 38, Tyron Woodley, 41, and Anderson Silva, 48.
But for the first time, he will fight over ten rounds and agreeing with Diaz to have the rules changed by the Texas commission.
Paul has twice gone the eight round distance, in victory over Woodley the first time but then for defeat to Fury.
Meanwhile, Diaz has gone the full five-round UFC distance over 25 minutes three times.
Despite the two-round extension, Paul plans to finish the fight by the half way mark anyway.
He said: “I’m ready, it’s not going to go that long.
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“I think he’s gonna be sharp for a couple of rounds but there’s nothing he can do to stop me.
“I’m faster, I’m stronger. I’m the better boxer. He’s gonna be coming forward.
“He doesn’t have head movement. He’s trying to pressure me. He’s gonna get diced up. I see it ending in four rounds or less.”