One of the most highly anticipated MMA cards of the year opens with a four-fight prelim card as UFC 319 gets underway in Chicago on Saturday.

Michael Page is known for having a tricky, difficult-to-deal-with style, but even he has to tip his cap to UFC middleweight champion Dricus du Plessis. This Saturday’s UFC 319 headliner sees du Plessis defend his middleweight title against the undefeated Khamzat Chimaev.

Imavov (16-4 MMA, 8-2 UFC) meets Borralho (17-1 MMA, 7-0 UFC) in the UFC Fight Night 258 main event on Sept. 6 from Accor Arena in Paris. Borralho will weigh in as the official backup for Du Plessis' title defense against Khamzat Chimaev in Saturday's UFC 319 (pay-per-view, ESPN, ESPN+) headliner at United Center in Chicago.

The South African has the weight and experience advantage, but the Russian is a relentless wrestler with naked ambition.