Stefanos Tsitsipas looks stunned after beating Roger Federer (Mark Schiefelbein/AP)
Tweet of the day
Greece’s other leading player gives her reaction.
Frances and the king
LeBron James gave his verdict on Tiafoe’s celebration (Instagram)
Tiafoe has been copying his hero, basketball superstar LeBron James, with his celebrations this week, removing his shirt to thump his bare chest and his biceps. When ESPN put both versions on their Instagram page, who should reply but James himself.
“He commented ‘silencer’ (the name of the celebration) and he put a crown, two muscle emojis,” said Tiafoe. “I was like, ‘Clearly he knows who I am now. That’s just crazy’.”
Collins up for the fight
Danielle Collins likes making tennis ‘a war’ (Kin Cheung/AP)
Collins has come to wider attention thanks to her stunning run here but anyone who has seen the American on a court knows that feistiness is her stock in trade.
She said: “I love making it kind of a war. If somebody wants to get in my face on my unforced errors, I have no problem getting right back at them. I just love competition. Sometimes when people are all for me I’m like, ‘I hope somebody says something negative so I can prove them wrong’.”
Fallen seeds
Women: Angelique Kerber (2), Sloane Stephens (5), Maria Sharapova (30)
Men: Roger Federer (3), Marin Cilic (6), Grigor Dimitrov (20)
Who’s up next?
Simona Halep, right, will attempt to follow up her victory over Venus Williams by knocking out Serena (Kin Cheung/AP)
The big match on Monday sees title favourite Serena Williams go up against world number one Simona Halep in the first match of the night session on Rod Laver Arena.
Following that, Novak Djokovic will look to avoid suffering the same fate as Federer when he takes on talented young Russian Daniil Medvedev.
Earlier, US Open champion Naomi Osaka faces Anastasija Sevastova while fourth seed Alexander Zverev will look to reach only his second slam quarter-final against in-form Milos Raonic.
– Press Association
Sourse: breakingnews.ie
