Oddly enough, we wont have anthems this time. GGG requested that they not play them.
They didn't want to abandon them completely because for some strange reason they are a boxing tradition, so they were sung in a near-empty arena before the PPV even began.
So, the fight should start soon after they are in the ring.
I posted that when they are singing the anthems before that undercard match with that Chocolatiitotinitto dude.