By Matt Hladik Muhammad Ali’s grandson Biaggio Ali Walsh is set to take the next step in his MMA career. Ali Walsh, 24, a former University of Cal and UNLV football player, has been signed by the Professional Fighters League (PFL) to compete in its tournament finals event in November. Ali Walsh is 1-1 in his career as an amateur fighter. According to the PFL, he is set to make his professional debut in 2023. “I want to thank Professional Fighters League for their support and confidence in me,” Ali Walsh said. “I have a legacy to live up to, a legacy that my grandfather began, that my brother a…