The wear and tear of playing more games in baseball is not the same as what a running back would endure. I agree that Aaron got more chances, but it wasn't just because of the increase of games in a season. Hank played 23 seasons with the first 8 years during the 154 game schedule. He could have possibly played in 3662 games over his career. Had his whole career been played with a 154 game schedule he would have potentially played 3542 total games. That is a 120 game difference. Take out the number of home runs he averaged for game for 120 games and he would be down to 730. Hank just played a lot of games period. The increased schedule helped, but he was going to play a lot of games no matter what. His 3298 games played ranks third all-time. Subtract that 120 games due to the increased schedule and he would still rank third all-time.