The cage door is unlocked for the season on the Professional Fighters League. The combat sports promotion was flattened last year because of the pandemic and did not hold events. The PFL competes in a seasonlong format that includes playoffs and championship fights. The champion of each weight class wins a $1 million prize. Anthony Pettis fights in the main event of PFL’s season opener Friday in Atlantic City, New Jersey. He takes on Clay Collard in a 155-pound bout that airs on ESPN2. PFL also added football Hall of Famer Ray Lewis in an advisory role to recruit talent. Also, the rapper Wiz Khalifa has joined the ownership group.