State of the game this week:
1. Nadal - easily playing the best tennis of his career at this stage of the season
2. Dimitrov - back to his peak form displayed in Australia swing
3. Zverev - near his best and excellent closer at latter stages of tournaments
4. Kyrgios - good enough to challenge Fed at Laver Cup and impressed with his play in rallies versus Mischa Zverev
5. Goffin - Goffin's demolition of Gasquet from down triple set point is the best tennis he's played in his career (won 14 of 15 points to take set, plus 6-2 in 2nd)
6. Cilic - really looking good and appears completely back on track from Wimbledon injury, possibly peak Cilic
7. RBA - impressive against Dimitrov and gunning for WTF
This is just much, much better than last year at this time. Honestly, if Fed is fully healthy and back on track at Shanghai probably the best end of season in modern times incoming.
Other players who looked great this week; Pouille, Schwartzman, Dzumhur, Rublev, and Gasquet. With Shaps coming in this week this may be amazing. Tiafoe has an excellent qualify draw.
With Goffin surging up the rankings that is 7 quality players for WTF in top form save Fed so far and well of course Thiem.
If Kyrgios were to win the China Open this weekend he'd be a scant 400 points behind Busta who probably won't get far in Shanghai.
Kyrgios at WTF would make for an unbelievable group of players with Cilic probably the weakest closer.