Djokovic angrily confronts fan after being heckled in warm up at US Open

NOVAK DJOKOVIC angrily confronted fan after being heckled in the warm up at the US Open.

The world No1, 32, was warming up for his third-round match with American ace Denis Kudla when he flipped after a comment from the crowd.

In his pre-match practice, Djok pulled out of hitting a serve to storm over to the fan, starting a heated confrontation.

It's unknown what the supporter said to rile him up - and Djokovic's initial reply.

But as he walked back to his mark, the 16-time Grand Slam champion warned: “I’ll come find you. Trust me, I’ll come find you.”

As is often the way with Djokovic, he stepped up a level on the court following the confrontation.

PUMPED UP

The Serbian ace thumped home-hero Kidla in straight-sets, 6-3 6-4 6-2 to reach the fourth round.

Djokovic had already beaten Juan Iganacio Londero and Roberto Carballes Baena without dropping a set.

He will now take on Stanislas Wawrinka - the US Open champion in 2016 for a place in the quarter-finals.

While Novak gets down to business on the court, wife Jelena is working hard off it - making cosmetics out of her own breast milk.

Jelena, 33, has explained she can't bring herself to throw away her frozen breast milk and will use it for soaps, amongst other things.

The Djokovics welcomed son Stefan to the world in October 2014 before having a second child, daughter Tara, three years later - in September 2017.

And Jelena posted a snap of her leftover milk on social media to reveal she had concocted a plan to ensure it doesn't go to waste.