Strictly Come Dancing professionals Nancy Xu and Carlos Gu awkwardly kept their distance in the Clauditorium during Saturday night’s show.

Just hours after the live episode aired on the BBC it was claimed that the pair have had a ‘shocking’ falling out and are now refusing to speak behind the scenes.

Nancy, 33, and Carlos, 31, both grew up in China and have been close since childhood in the past have shared cute nicknames for one another.

The pair have unfollowed each other on social media and according to new reports, tensions backstage have left their fellow pros ‘shocked’.

And as the dancers and pros debriefed with host Claudia in the upstairs area of the studio Nancy made sure to stand on the far left with her celebrity partner Shayne Ward.

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Strictly Come Dancing professionals Nancy Xu and Carlos Gu awkwardly kept their distance in the Clauditorium during Saturday night’s show

Carlos – who doesn’t have a partner this year – was stood far away on the other side of Claudia as he supported Amy Dowden after she returned to the show following a health scare.

Carlos was dressed as David Bowie with his iconic face paint and rede hair.

An insider told The Sun on Saturday: ‘The feud between Nancy and Carlos is really sad and has left everyone really shocked. They’ve been close since childhood, but have fallen out and unfollowed each other on socials.’

It’s claimed tensions arose after Carlos was left disappointed not to be paired with a celeb this series, while Nancy has been busy in rehearsals with Shayne Ward, 40.

The source added: ‘The atmosphere on set is said to be awkward and tense when both are around, and to many it was a relief when Carlos didn’t attend the show weeks ago’.

Meanwhile a separate source told MailOnline: ‘Both Carols and Nancy are extremely cordial and always incredibly professional on Strictly premises’.

MailOnline have the dancers representative and the BBC for comment.

During previous seasons, Carlos has been paired with TV presenter Angela Scanlon and EastEnders stay Molly Rainford.

Carlos and Nancy are not the only two pros who are avoiding each other this series.

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Just hours after the live episode aired on the BBC it was claimed that the pair have had a ‘shocking’ falling out and are now refusing to speak behind the scenes

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Nancy and Carlos both grew up in China and have been close since childhood in the past have shared cute nicknames for one another (pictured together on the show)

The former friends do not follow each other on social media

After Nadiya Bychkova and Kai Widdrington’s recent split, tensions are said to be frosty between the pair.

They are reportedly refusing to stand next to each other on screen.

Nadiya has previously revealed she ‘isn’t friends’ with her former flame and the pair have been seen to be noticeably standing apart while upstairs in the Clauditorium during the live show.

The BBC refused to comment and MailOnline have contacted representatives for Nadiya and Kai.

The couple reportedly ended their two-year romance after ’emotionally drifting away from each other,’ with sources claiming the pressures of touring together took a toll on their relationship.

Speaking to The Mirror earlier this month Nadiya revealed that she and Kai are still working on Strictly, despite not having celebrity partners, and they’ll always keep things professional when they dance together.

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It’s claimed tensions arose after Carlos was left disappointed not to be paired with a celeb this series, while Nancy has been busy in rehearsals with Shayne Ward, 40 (pictured)

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During previous seasons Carlos has been paired with TV presenter Angela Scanlon (pictured) and EastEnders stay Molly Rainford