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,

The UFC 317 fight between Ilia Topuria and Charles Oliveira will be available through pay-per-view in the US on ESPN+. ESPN+ subscribers can opt to add it on to their monthly plan ( click here to see how ), and it's a $79.99 add-on to the monthly subscription.

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