Seems like Novak likes to lose the 1st set before he settles in. He won the 2nd and 3rd at 6-2 each.
And it is really weird to see a guy going for the Grand Slam not have the crowd behind him when playing against a random non-American player. I mean I'd get the crowd supporting an American or someone like Federer or Nadal, who are both extremely popular, but to see the crowd supporting Berrettini is just strange to me.
Assuming Novak doesn't choke this away, he will face the man that entering the tournament would have the best odds to beat him (and maybe the only one that realistically could), in 4th seeded Zverev. Zverez beat him at the Olympics, so should be an interesting match.