'Topless in a club': Nick Kyrgios continues attack on Boris Becker

Nick Kyrgios has continued his war-of-words with tennis great Boris Becker after he was accused of being a ‘rat’.

Kyrgios let rip at Becker on Tuesday, labelling him a ‘doughnut’ after the six-time Grand Slam champ appeared to have had enough of Kyrgios calling out fellow professionals.

‘HAPPINESS FOUND’: Nik Kyrgios sparks new relationship rumours

TRADING BARBS: Kyrgios slams Djokovic father’s virus claim

"We all live in the pandemic called #Covid_19 ! It's terrible and it killed to many lives...we should protect our families/loved ones and follow the guidelines but still don't like #rats @NickKyrgios @farfetch," Becker tweeted on Tuesday night.

But Kyrgios was quick to point out he was holding people accountable during an unprecedented time.

"Rats? For holding someone accountable? Strange way to think of it champion, I'm just looking out for people,” he tweeted.

“WHEN my family and families all over the world have respectfully done the right thing. And you have a goose waving his arms around, imma say something.

"Boris Becker is a bigger doughnut than I thought. Can hit a volley, obviously not the sharpest tool in the shed though."

Kyrgios questions Becker’s defence

After Kyrgios appeared to put the war-of-words to bed on Tuesday night after telling Becker to stop acting like they were friends, he reignited it on Wednesday morning.

Becker, not for the first time, showed his support for Djokovic overnight after his ill-fated Adria Tour tennis event.

Becker retweeted an article on Serbian Prime Minister Ana Brnabić after she defended Djokovic, and called for the blame to be shifted towards the government.

He captioned the retweet with: “#word”.

But Kyrgios wouldn’t let this fly and asked whether it was appropriate for Djokovic to be seen at a party with his shirt off, before it was confirmed he tested positive for coronavirus.

Kyrgios has not been afraid of calling out fellow professional tennis players for an array of antics during the coronavirus pandemic, which recently included the bizarre case of German ace Alexander Zverev.

Zverev took part in the Adria Tour tennis event recently but was one of the lucky few not to test positive for coronavirus.

Despite getting the all clear, Zverev assured fans he’d be self-isolating over the next week or two as a precaution.

But videos emerged on Monday of Zverev partying in Monaco just days after being swept up in Djokovic's tour debacle.

“‘Sascha’ Zverev again man, again, again, how selfish can you be?” Kyrgios said in a video uploaded to his Instagram story.

“If you have the f***ing audacity to tweet that you’re going to self-isolate for 14 days...at least have the audacity to stay inside for 14 days.”