Israel Adesanya is concerned with Charles Oliveira's striking defense against Ilia Topuria. Oliveira (35-10 MMA, 23-10 UFC) meets Topuria (16-0 MMA, 8-0 UFC) for the vacant lightweight title in Saturday's UFC 317 main event (pay-per-view,

Ilia Topuria's emergence as one of the top pound-for-pound fighters in the world has propelled him to the biggest stage of his career as he takes on former champion and future Hall of Famer Charles Oliveira for the vacant lightweight title on Saturday night at UFC 317.

In the main event, former featherweight champion Ilia Topuria makes the move to lightweight, where he'll take on former champ Charles Oliveira for the vacant title. Topuria vacated his featherweight title to pursue lightweight glory and he will enter the Octagon as a considerable favorite against Oliveira.