"The lady has no idea that it’s my daughter so we’ll see how that goes."
The only man to beat Djokovic in 2020 is Djokovic after the Serb's hair-trigger temper prompted a sensational disqualification from the US Open
Ouimet while achieving the feat beat two of the game's greatest - Harry Vardon and Ted Ray. The 21-year-old, a pro for just 16 already has a PGA Tour win
The second seeded Austrian beat the fifth seed 2-6, 4-6, 6-4, 6-3, 7-6 (8/6) in 4hr 2min inside a near-empty Arthur Ashe Stadium.
Progressing into the US Open semifinals for the 14th time, Williams staged a stellar comeback in her 4-6, 6-3, 6-2 win against Pironkova in the quarter-finals.
Djokovic exited the US Open in the most unexpected fashion on Monday after he was defaulted as the ball he struck had hit the line judge in the throat. While the shot wasn't intentional, the official was down for a while.
Osaka, the 2018 US Open winner, takes on unseeded American Shelby Rogers under the lights at Arthur Ashe Stadium for a place in the semi-finals.
Williams, chasing a record-equalling 24th Grand Slam singles title, had to summon up every last ounce of strength to depose 15th seed Maria Sakkari in three, hard-fought sets.
World No. 1 apologises but the USTA defaults the player under Grand Slam rules
Thiem had the upper hand in the match as he won the first two sets easily with an identical margin 6-2, 6-2 but the Croat was in no mood of giving away the match to Thiem.
The 38-year-old was given a scare in the first set, as Stephens completely caught her off guard and Williams had to lose the first set 2-6.