Tennis power couple in ‘crisis’ as Jannik Sinner ‘takes a break’ from Nick Kyrgios’s ex weeks after US Open kiss

JANNIK SINNER has reportedly taken a break from his relationship with Anna Kalinskaya.

The tennis power couple appear to be in crisis with Kalinskaya nowhere to be seen at Sinner's recent events.

They shared a kiss after the Italian won the US Open in September but have since seemingly drifted apart.

The couple do not follow each other on Instagram and Kalinskaya did not support her man as Sinner won his first ATP Finals event in Turin - she was instead on holiday in Miami.

It is understood the pair are taking a break amid a "crisis" so they can "better understand their relationship and future".

Sinner, 23, also shared some cold comments about his relationship that has only helped to add fuel to the break up fire.

According to sources in Russia, he said: "Having a girlfriend is something that makes you feel good or makes you feel bad.

"I want it to be something that seems very natural, that enters my life normally.

"I can't afford to change as a player or as a person. This hasn't happened, which is why it works."

Kalinskaya, 25, may also be choosing to focus on her own game as she looks to improve on her world number 14 ranking.

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She formerly dated another tennis star, Nick Kyrgios, and she is still yet to win a title.

Sinner and Kalinskaya went public with their relationship in May but appear to have hit a rocky patch.