UFC lightweight champion Aljamain Sterling complained about Petr Yan's actions.
"Coward blocked me after he said de**m about me and my fiancée. I guess he got upset because I didn't respond the way he wanted me to," the fighter wrote on his Instagram.
The rematch of Yan and Sterling, which was scheduled for October 30, got derailed.
Watch this story: Sterling confident of victory over Yevloyev