Irwin Rivera

Sister, manager of jailed UFC fighter Irwin Rivera speak out day after stabbings

Rivera's sisters, Lezlye and Kelly, remain hospitalized but in stable condition, the fighter's manager, Ali Abdelaziz, told ESPN.

Earlier Friday, in a Facebook post, Lezlye wrote that Rivera hadn't been sleeping, was not talking the way he normally would and completely had lost interest in MMA training, which is what "he lives to do." Lezlye said she flew to visit Rivera in Florida because of his bizarre behavior.

"Unfortunately his mental stage was worse then we could [have] imagined and before we could help him he completely broke," Lezlye wrote.