Jake Paul punched back at Canelo Alvarez on Friday night, a day after the Mexican boxing icon passed up a speculated bout with the YouTube star and agreed to a four-fight deal with Riyadh Season.

“The truth is, you could be bought,” Paul said to Alvarez on social media. “You’re a money-hungry squirrel chasing your next nut. The truth is, these sports-washing, shady characters are paying you hundreds of millions of Dollars to stop our fight from happening because they couldn’t fathom the fact that they can’t create a bigger fight than me and you.”

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Turki Alalshikh, the head of Riyadh Season and the General Entertainment Authority of Saudi Arabia, announced the four-fight deal Thursday on social media. The first fight would be in May in Riyadh, Saudi Arabia, and Terence Crawford — the long-reigning welterweight champion — might be his second fight in Las Vegas.

READ: Canelo Alvarez drops Jake Paul fight, signs big deal with Riyadh Season

Alvarez has spent years as the biggest moneymaker in boxing, and the 34-year-old super middleweight champion used the threat of a stunt fight against Paul to leverage a major commitment from the Saudi Arabian government arm that has flooded the sport with money in the past few years.

“You call me a YouTuber, but you’ve never had a boxing match as big as mine,” Paul said. “I promise you one thing, Canelo. Any fight that you do this year, mine will be bigger.”

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Alvarez would have been an astronomical favorite to beat Paul, who has turned himself into one of the biggest draws in combat sports while fighting mixed martial artists and 58-year-old Mike Tyson.

Alvarez last fought in September in Las Vegas, outpointing Edgar Berlanga to improve to 62-2-2. He has 39 knockouts.