US Open at a glance -- day 4

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Old pals act: Roger Federer and Benoit Paire embrace

US Open at a glance -- day 4:

Headlines

+ Controversy over umpire's 'I can help you' chat to Kyrgios

+ Kyrgios laughs off incident; opponent says umpire over-stepped mark

+ Federer makes it 18 wins in 18 second round matches in New York

+ Djokovic through in four sets

+ Australian Open champion Wozniacki crashes out

Top results

-- Roger Federer (SUI x2) bt Benoît Paire (FRA) 7-5, 6-4, 6-4

-- Novak Djokovic (SRB x6) bt Tennys Sandgren (USA) 6-1, 6-3, 6-7 (2/7), 6-2

-- Lesia Tsurenko (UKR) bt Caroline Wozniacki (DEN x2) 6-4, 6-2

-- Maria Sharapova (RUS x22) bt Sorana Cirstea (ROM) 6-2, 7-5

-- Alexander Zverev (GER x4) bt Nicolas Mahut (FRA) 6-4, 6-4, 6-2

-- Angelique Kerber (GER x4) bt Johanna Larsson (SWE) 6-2, 5-7, 6-4

Sidelines

Crazy rotations!

-- Japan's Naomi Osaka was stumped when asked if she had seen the smash hit movie Crazy Rich Asians but misunderstood the question.

"Oh, I'm sorry. I thought you were saying 'crazy rotations'."

Osaka in a hurry

-- 20th seed Osaka's 6-2, 6-0 win over Israeli qualifier Julia Glushko took just 50 minutes, the shortest completed match of the 2018 tournament.

Back off, Bouchard fan

-- On Court 17, a fan told Nick Kyrgios to leave because "we want Genie" in a reference to the Canadian poster girl who was due up next.

Kyrgios fired back: "Well, you’ll never have her."

Who's saying what

"She hit a second serve, right? And in my mind, right before she hits the second serve, I'm thinking, Do not hit this down the line. Don't go for it, right? And then there is another part of me that's, like, But if I hit this down the line, there is a 50/50 chance it will be a winner and you could win the point easy. And then when she's serving the ball, it's like ta, ta, ta, ta, ta, and I'm arguing with myself. Do it, don't do it, do it, don't do it. And then the ball comes and I hit it down the line and it goes in the net. I'm, like, Why did I do that?"

-- Osaka on her mid-match dilemmas

"Maybe give me the prize money of the winner. That would be I think fair, yes."

-- French player Pierre-Hugues Herbert after his controversial loss to Nick Kyrgios in which the Australian was given a courtside pep-talk by the umpire

"I like cold sparkling water. I like a nice glass of champagne. Yeah, I like that, a nice drink."

-- Roger Federer on his favourite tipples

"She played the game I should have been playing."

-- Second seed Caroline Wozniacki after her 6-4, 6-2 loss to Lesia Tsurenko

"You've got to be crazy to be here after midnight."

-- Maria Sharapova after her late, late show win over Sorana Cirstea