According to TMZ, the so-called 'Golden Boy' of boxing checked himself into a California facility sometime in the last few weeks to seek help for his addiction.
De La Hoya picked up 39 wins and only six losses over the course of his boxing career, before retiring back in 2009.
In addition to defeating 17 different world champions, the boxer also won ten world titles in six different weight classes.
On his official Twitter account De La Hoya has posted a number of messages over the past few days hinting that he was trying to change his life.
"Stop finding excuses not to live," he tweeted. "Life is controlled by what you make of it and not of what it makes of you."
No further details about De La Hoya's rehab stay have been announced.