On September 3, 1961, Roger Maris and Mickey Mantle of the Yankees became the first set of teammates to hit 50 homers in a season. In a game against the Tigers, Mickey Mantle launched one in the bottom of the ninth to tie the score at 5-5, en route to a 8-5 victory.

And imagine, they did this all without incessant slow motion replays, fans wave and large scoreboards.
And Roger Maris weighed all of 160 pounds by the end of the season. Not too many guys can pull this kind of thing off.