Nearly half the Top 10 exited Tuesday at the US Open.

“It’s crazy to think I had to play pre-qualifying here two years ago,” said the elder Zverev, who will next face Thiem.

It was the 31-year-old Tsonga’s first match since the US Open after knee surgery.

Rafael Nadal (currently injured) beat Fognini in last year’s final…Leo Mayer (2014) is the only former champ in the field.

Four Top 10 seeds and a former Wimbledon champ round out the stout draw…The 16 seeds all receive opening-round byes…Floaters galore, with tough opening matches for…

A new surface in Munich?

No Top 20 players, but Istanbul you do have Bernie “The Tank Engine” Tomic! For at least a round…

Federer has won the most singles titles of any player in Doha, and is a perfect 3-0 in finals…Ferrer beat Berdych in last year’s final…Nadal, who is playing doubles with Verdasco, has won the most doubles titles of anyone at the event with four (2005,’09,’11,’15)…Former singles champs in the field are Ferrer (2015), Nadal (2014), and Federer (2011,’06-05).

All 16 seeds receive opening-round byes, but some potential interesting second-rounders with (12) Pospisil vs. (WC) Haas, (4) Gasquet vs. the hot-handed Muller, break-up boy (6) Dimitrov vs. the resurgent Baghdatis, and (7) Lopez vs. (WC) Hewitt on his retirement tour…

Notes: Time for the tournament sponsored by an online betting site as the tour fights rampant match-fixing…Loaded dirt field…Rafa makes his first appearance since being upset at Wimbledon…Tough starts for (1) Rafa vs. Hot Sauce

Sean Randall handicaps the Wimbledon men’s quarterfinals. Can the top 3 – Novak Djokovic, Roger Federer and Andy Murray – advance to the semifinals?

Notes: The tournament makes the switch to grass as part of the tour’s extended grasscourt season…Tough starts for (1) Nadal against the Baghdatis-Rosol winner, and (8) Troicki vs. Coric…Wildcards went to Germans Tommy Haas, Maximilian Marterer and Alexander Zverev…Pulling from the event were Julien Benneteau and Jiri Vesely…The Bryan brothers are the top seeds in doubles…Nadal (2007,’05) is the lone returning former champ in the field.

Notes: It’s the debut of the Premier 5 Series event in China…Victoria Azarenka pulls from the event with a foot injury, and announces she will miss the rest of the year…Potential tough starts include (1) Serena Williams after a bye vs. her nemesis Cornet, the struggling (6) Bouchard after a bye vs. the resurgent Peng, (4) Sharapova after a bye vs. countrywoman and former world No. 2 Kuznetsova, (5) Radwanska after a bye vs. the Venus/Garcia winner, (16) Petkovic vs. the comer (Q) Vekic, (12) Cibulkova vs. the big-hitting Keys, and (14) Safarova vs. the likewise big-hitting Lisicki…

It was Williams’ third Stanford title, her fourth title of the year, and her 61st career title. She rose to only No. 4 in the 2014-only standings in the road to qualifying for the WTA year-end championships.

A Canadian will win in Washington today, which one will it be?