Former featherweight titleholder Topuria (16-0 MMA, 8-0 UFC) will take on former 155-pound kingpin Oliveira (35-10 MMA, 23-10 UFC) for the vacant strap left behind when Islam Makhachev agreed to move up to welterweight. There is history at stake for both sides, and the anticipated was palpable during their final encounter at ceremonial weigh-ins.

Ilia Topuria has a golden opportunity to become a two-division world champion when he takes on the dangerous Charles Oliveira later this evening

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