Floyd Mayweather Jr has apologised for an Instagram post that appeared to make fun of Oscar De La Hoya after the legendary fight checked into rehab, according to ESPN.
De La Hoya missed last weekend's Mayweather-Alvarez bout after checking himself into a substance abuse treatment facility.
The fight, which was promoted by De La Hoya's Golden Boy Promotions, was won by Mayweather on points.
And after the bout, according to the LA Times, a photograph of De La Hoya was posted onto Mayweather's Instagram account along with the headline: "MEANWHILE IN REHAB."
That photo was also accompanied by a caption that said: "OSCAR: I gave Canelo the wrong blueprint I was high."
But Mayweather has since apologised for the post, and claimed he did not authorise it in the wake of his majority decision victory over the young Mexican fighter Alvarez.
"It's unfortunate that a stupid was posted to my Instagram account earlier today that was not posted by me or authorised by me to post," Mayweather said on his official website.
"As I clearly stated during my fight week and again in the post fight press conference, I completely support Oscar De La Hoya and his family during this difficult time in his life.
"I stand by him unconditionally and would never personally disrespect him or anyone who struggles with addiction.
"I apologise to Oscar and his family for this posting. I wish him well and am rooting for him to win this fight too. I also apologise to all of my followers for this ridiculous post.
"I have no ill-will towards anyone."