Fed is just about done -- Nadal still looks like a kid out there. If Nadal's knees and shoulders hold up he should easily pass Fed which is hard to believe.
Hard to believe Medvedev battled back. He made an amazing effort when he easily could've given up down two sets to start against one of the GOATs. The guy is basically a wall. You'd think a guy his height wouldn't move so well but he's fast and leggy like a gazelle. He has Murray's defensive coverage but with an actual offensive stroke. I could see him winning a few slams.
With Fed having that marathon match in the quarters I think Djoko walks into the finals. Would love to see Zverev get over his choke jobs in majors and take out Nadal. Dude looks solid.
Djokovic disqualified at US Open for (presumably inadvertently) hitting a ball to the throat of a lineswoman.