All joking and memeing aside, I think Brazil and Russia can't keep their recent level through elimination rounds. Russia felt pressure-free and was thus able to swing freely because they thought they had nothing to lose, Now, after beating USA and China, I think a little hesitation and uncertainty will creep back into the muscles and minds, because they now DO have something to lose. Don't think they'll play in quarters anywhere close to their level against USA, but we'll see. Goncha is bound to remember it's 2021, not 2015.Fedorovtseva might continue to dominate, though.
And even if Brazil continues to play as well as they've done so far, it might not be enough for gold, because both USA and Italy have the ability to blow them off the court if they have a good day.