Lenny Daniels , the former head of Warner Bros. Discovery ‘s sports operations, has joined Professional Fighters League as chief operating officer as the mixed-martial-arts league is working to compete more headily against UFC. Daniels will oversee all day-to-day operations across the league, including global business operations, brand and content strategy, and commercial expansion. He will also play a central leadership role in the PFL’s upcoming U.S. media rights negotiations. ‘The Long Walk’