Novak Djokovic had every reason to let his hair down after winning a record 10th Australian Open crown on Sunday - but the Serbian superstar's celebrations didn't exactly match the magnitude of his achievement.

A clinical 6-3 7-6 7-6 victory over third seed Stefanos Tsitsipas clinched Djokovic his 22nd career Grand Slam - equal with Rafael Nadal - and definitely warranted a few celebratory drinks with his entourage.

Instead the polarising 35-year-old - who was infamously deported from Melbourne 12 months ago after failing to revealing his vaccination status - had to contend with media commitments and doping control instead of partying.

'It was a long night, but of course a huge relief after the match,' Djokovic said on Monday.

'Ending a tournament and the whole journey here to Australia with a grand slam win is always incredibly satisfying. 

'I owe all the success to my team members, my family … (after) going through some challenging times in the last three or four weeks.

'I haven't had the chance to really celebrate as I would like to, I guess that's going to come in Europe when I head back.'

Djokovic is now once again world no.1 - and after almost three hours on court against Tsitsipas and a very testing fortnight, he let out his emotions.

His 'severe' hamstring injury was repeatedly questioned, and then his father Srdjan generated international headlines after posing for a photo with Russian demonstrators.

The majority of the crowd also wanted Tsitsipas to snare his maiden Slam.

But as he so often does, Djokovic silenced the haters and delivered when it mattered.

Moments after match point, he climbed into his players’ box to greet the likes of his coach Goran Ivanišević before collapsing, crying tears of unbridled joy.

Next Djokovic returned to his courtside chair where he buried his head and howled as the enormity of what he had just achieved began to sink in.

He won first title at Melbourne Park aged just 20 in 2008 - and again will be one the favourites next January if not hampered by injury.