INGLEWOOD, Calif. — Mike Perry beat Nate Diaz in a two-round welterweight brawl Saturday night on the undercard of Ronda Rousey’s comeback fight against Gina Carano.Perry (15-8) earned his first victory in mixed martial arts since June 2020 with 10 minutes of steady punishment for the 41-year-old Diaz (21-14), who had been away from the MMA cage for nearly four years. Perry was quicker and more active than Diaz, whose face and chest were covered in blood during the second round.Perry threw a flying knee that sent Diaz sprawling at the second-round bell, and referee Mike Beltran waved off the fight moments later in agreement with Diaz’s corner.“He’s the toughest guy out there,” Perry said about Diaz, who was the vocal crowd favorite in his native California. “There’s no quit in him. … The entire crowd was cheering for him so loud.”Veteran heavyweight star Francis Ngannou finished Philipe Lins in the first round of just his second MMA fight in four years, and the former UFC champion immediately teased the possibility of a boxing match with promoter Jake Paul — or an MMA bout with fellow superstar Jon Jones, who also attended the show.Earlier, former UFC heavyweight champion Junior Dos Santos was brutally knocked out by Cuba’s Robelis Despaigne in the first round of the first fight of the main card.Perry had been away from MMA for five years after his UFC …