Chris Leben confirms Jake Paul can bring him out of retirement: ‘You want to put an extra zero on my paycheck?’ Share this story Photo by Alex Menendez/Getty Images Chris Leben is open to a return to combat sports if it lands him in a money fight with YouTube sensation Jake Paul. Leben, a former UFC middleweight contender, officially retired from fighting earlier this month after a vicious knockout win over Quentin Henry at BKFC’s KnuckleMania (see it HERE). A few days after the fight Leben took to social media to express his interest in fighting “dwarfs and dweebs,” insinuating a potential clash with Paul.