What happened: Johnny Walker spoke publicly about a strained dynamic with his brother Valter, citing past online remarks directed at his family. Walker said the tension originated after a bout in China and caused emotional hurt to his mother and wife.

Why it matters: Walker previously ruled out fighting his brother in the UFC heavyweight division despite both competing in the organization. The remarks come immediately after Walker improved to 24-10 with a third-round stoppage at UFC Vegas 124.

What to watch: Walker awaits his next heavyweight assignment following his headlining victory in Las Vegas.