Amazing ...Spahn was 42 and threw over 200 pitches .
He used to pitch an inning or two in relief between starts if he had to as well - within a 4 man rotation.
All the talk about this and that, the fact is that the best American and Latino athletes in the world wanted to play MLB back then. There were only 16 teams and the rosters were much smaller.
They didn’t want to play football and get hurt or basketball and not ever make any money - they wanted to play baseball.
Those that made it to the “Show” were the best of the best, and guys like Spahn and Marichal were better than even that. THAT’S why they could do what they did.