The model at the centre of the Carlos Alcaraz and Jannik Sinner 'love triangle' blocked her sister after a comment about the relationship.
Alcaraz and Sinner have come to dominate men's tennis in the last couple of years, with the pair winning all four Grand Slams across the past season. Recently, Alcaraz was reported to be dating Sports Illustrated model Brooks Nader.
A source later claimed that his rival Sinner was also dating the same model during the US Open this summer. Now, Nader's sister Grace Ann has revealed on the "Not Skinny But Not Fat" podcast that her sister gave her the cold shoulder after the revelation.
She said: “She blocked me, and she didn’t speak to me for a while. I have no filter and I live with Brooks, so it’s hard for me to pretend like I don’t see things or hear things first hand.
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“The funniest part is that I truly thought I was being discreet and sly by saying, ‘He’s the man of the hour, but I can’t confirm dating'.
During the show, Brooks was also asked whether she was dating Alcaraz and Sinner at the same time.
She replied: “A lady never kisses and tells, especially twice. That’s just not nice."
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At that point Grace interjected: "Especially not to her other boyfriend.”
Brooks then continued: “I mean, ‘dating’ is such a loose term these days.
"Guys do it all the time, so why can’t I do it?”
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Nadar was previously married to real estate investor Billy Haire, but the pair divorced earlier this year.
She has also casually dated the NFL icon Tom Brady.
Last month, Grace Ann Nader was asked directly about the rumours linking her sister with the Spanish tennis star.
Speaking to the Daily Mail, she said: "The rumours are true. Dating is such a loose term. But I do know he’s the man of the hour."
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When asked if she will be meeting the new world number one, Grace Ann replied: "I’m dying to. Such a cutie."
Alcaraz's love life has long been the subject of speculation. He has previously admitted that it is difficult to settle down with someone due to the constant travel demands of an elite tennis player.
Earlier this year, there were rumours of a relationship with British tennis star Emma Raducanu, but both players always denied those reports.
Last month, Spanish journalist Alberto Guzman dismissed claims that Alcaraz was in an 'official relationship' with Nader.
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He explained that the world number one had told those close to him that he had no intention of entering a serious relationship.
Topics: Carlos Alcaraz, Jannik Sinner, Tennis
James Taylor