Sterling called O'Malley a worthless champion

Aljamain Sterling, former UFC lightweight champion, wrote a post on social media addressed to the organization's current lightweight champion Sean O'Malley. Sterling called Sean a worthless champion.

"You're a worthless champion. Keep bragging about fighting handicappers. You do it to have a high chance of winning. Kid, you're not a real man. Don't try to run away from a top contender again and then fight a guy who's locked in the top 15," Sterling wrote on his social media.

Recall that O'Malley became the UFC lightweight champion by knocking out Sterling and taking the championship belt away from him.