Muhammad Ali’s grandson Biaggio Ali Walsh picked up his first professional knockout, and it came in less than a minute at 2024 PFL Playoffs 2. At Hard Rock Live in Hollywood, Fla., Ali Walsh (2-0) picked up the first stoppage of his young professional career by flooring a debuting Brian Stapleton in just 55 seconds. The fight served as the main card opener of 2024 PFL Playoffs 2. Ali Walsh racked up five stoppages under the PFL banner as an amateur. His first professional bout took place in February, going the distance with Emanuel Palacio