Floyd Mayweather says it's about time he partied with Johnny Manziel because he made a ton of cash gambling on the former Texas A&M superstar over the years. Mayweather was out in LA last night and talked about the huge celeb party at Justin Bieber's Beverly Hills pad earlier this week, where the cops rolled up to handle a noise complaint. "We love the LAPD," Johnny said. Least Floyd could do is buy Johnny a beer, right?