LeBron James, JJ Watt, and more praise Conor McGregor after his astonishing 40-second knockout of 'Cowboy' Cerrone in comeback fight

12:19am PST - January 19th, 2020    baker mayfield - Business Insider

Steve Marcus/Getty Images // Sean M. Haffey/Getty Images Conor McGregor dominated Donald "Cowboy" Cerrone in his return to UFC action Saturday night. McGregor charged Cerrone immediately, and secured the knockout win just 40 seconds into the fight. After his …