http://www.npr.org/templates/story/s...oryId=12037385
As the sporting industry exploded in the 1920s, athletic trainers and their charges immediately saw the possibilities of using his research.
Even the Big Bambino himself, Babe Ruth, injected himself with extract from a sheep's testicles, hoping for increased power at the plate (and in the bedroom). He attempted this only once, and it made him incredibly ill; the Yankees covered the story by telling the press that the Babe just had one of his famous bellyaches. Even though the Yankees tend to celebrate all things Babe Ruth, they have never, to my knowledge, had "Sheep Testicles Day" at the stadium.