View gallery Image Credit: Zuffa LLC via Getty Images Ben Askren established himself in the mixed martial arts and boxing worlds despite retiring in 2019. Among one of the ex-fighter's most popular matches was in April 2021 against Jake Paul, who won. And despite the fact that fighters tend to hurl insults at each other before matches, Jake shared his regards to Ben six years later after Ben underwent a double lung transplant following a severe case of pneumonia. Below, learn all about Ben, his career and his life now.