The Ultimate Fighting Championship on Jan. 11 kicks off its 2025 schedule with a UFC Fight Night 249 card headlined by a rematch between Mackenzie Dern and Amanda Ribas at the UFC Apex in Las Vegas.

Brazilian jiu-jitsu ace, Mackenzie Dern — currently ranked No. 6 in the world at 115 pounds — is one of the more interesting possible title challengers in the Strawweight ranks. As an ...