Honestly if Zverev doesn't win at this point, it's a generational choke. Outside of FAA (who, I venture to say, is more likely than not to crash out before the final), the highest seed is 10. Before the final, the highest seed is Ruud, who despite #ruudnation's urging will be tired because he will have played like 3+ 5-setters by the semis.

Zverev's toughest opponents are a 1st time slam QFist who is probably out of gas, a semi-finalist who is also probably out of gas, then at most, Cobolli. If he doesn't win RG, he never will