Since he joined the Milwaukee Brewers, Braun has belted big home runs not with cartoonishly large muscles, but with a sweet swing and an ultra-quick bat. Last season, he helped drive the Brewers to the playoffs and was voted the NL’s Most Valuable Player.

Now Braun finds himself fighting a 50-game suspension after news leaked that he has tested positive. Braun’s representatives steadfastly maintain his innocence.

But there is a long history of athletes accused of taking banned drugs insisting they did so to recover from injuries. Sports medicine experts acknowledge the drugs may help — raising the possibility Braun might have been doing just that.