MMA Junkie analyst Dan Tom goes in-depth to break down the biggest fights in the UFC. Today, he takes a closer look at the UFC 317 vacant lightweight title main event between former featherweight champion Ilia Topuria and ex-lightweight champ Charles Oliveira.

The main event will see a new lightweight champion crowned when Ilia Topuria battles Charles Oliveira for the vacant title. Topuria previously held the featherweight title in the

UFC 31 will showcase Ilia Topuria facing off against Charles Oliveira for the vacant UFC lightweight title on Saturday. Here is what to know.