UFC superstar Conor McGregor made the payday of his career last year. Back in 2017, "Notorious" made his boxing debut against Floyd Mayweather Jr. McGregor lost the bout, but still earned an estimate $100 million from the match. Now "Notorious" has estimated that he will earn around $50 million for his big octagon return against Khabib Nurmagomedov at UFC 229 on Oct. 6. Speaking at the recent UFC 229 pre-fight press conference, Conor McGregor was asked at what age he projects that he will be a billionaire. McGregor replied, “I’m 30 years of age – I’d say by 35.” For more MMA news click here.