Interestingly, I think Holyfield's belief in God is what helped him beat Mike Tyson. I watched an interview in which he said 'this fight isn't about me and Mike Tyson. This fight is about good versus evil. This fight is gonna rock the world...' This was also after Holyfield had been diagnosed with a heart condition, that he believed had been healed by God. He didn't appear to be intimidated by Tyson at all, which as you know is the main reason Tyson won so many fights - his opponents were afraid of him. And Tyson DID appear to feel threatened by Holyfield. In the interviews I watched leading up to that fight, Tyson seemed more shrill than usual, saying that he wasn't afraid of Holyfield, and so on. Tyson never said he wasn't 'afraid' of anybody in that manner, that I know of. And we all know the results - Holyfield knocked him out in their first fight, and forced Tyson to disqualify himself in order to avoid another KO in their second fight.
Holyfield believed that God was going to give him victory in his next fight, too, even predicting the round in which he would KO his opponent. He said that God 'told him' that he would knock out his opponent in the third round. You could visibly see Holyfield step up his attack in the 3rd. But he was unable to KO his opponent in the 3rd round after all, though it doesn't appear that this shook Holyfield's faith in God any.
It is surprising that all the athletes and celebrities seem to believe that God wants them to have multi-million dollar homes and expensive cars, when Jesus said it is easier for a camel to go through the eye of a needle than for a rich man to get into Heaven.