Joe Frazier lost about 75% of his vision in 1 eye just before his pro career started. Only he and his trainer Eddie Futch knew about it so. I don't think it's hard to hide shit from commissions.
He started his pro career having one eye with 25 % vision? I'm sorry but thats hard to believe but you can believe what ever......Just like Wilt Chamberlain had sex with 10,000 women right... lol