I can't verify the accuracy of this story but I've heard it told a few times so perhaps there is a grain of truth to it. Apparently when Bradman was asked to address the 1992 World Cup team, one of the young Australians (attributed toTom Moody) asked of him: "If you played against England today, do you still think you would have averaged 99?". Modest to a fault, Bradman replied "of course not. I'd be lucky to even average 50". Shocked by this, the same player stammered "but Sir, how can you say possibly say that? I mean, you were the greatest of all time and you don't think you'd average even 50 today? The English attack isn't that strong". The Don smiled gently and allegedly said "son, don't forget, I'm 83 years old now".
That's how good he was!