Everyone who's been into baseball for the last 20 years knows about Manny Ramirez and the odd fellow that he is. Apparently, the whole 2004 Boston Red Sox team was filled with odd fellows who got really nervous really easily.
During their run that led to them winning the 2004 World Series, the players would take a pregame shot that consisted of honey, wine, gin and medicine root. The concoction wasn't enough for Manny, so he decided to ad 100mg of Viagra to the shot, originally just for one player who said he'd try it because he wasn't playing that day. He said the mixture worked for him, so everyone started putting Viagra in their drink.