Australian Open 2020: Shot clock rules explained as Novak Djokovic blasts umpire

The shot clock system at the Australian Open has been in place since 2018.

Novak Djokovic has fallen foul of the shot clock in the Australian Open final already on a number of occasions. Express Sport takes a look at what the shot clock is and what happens when a player goes over the allotted time.

Under old rules, players were expected to begin the serving action within 20 seconds of the last point.

However, chair umpires were given discretion to let them exceed this limit after longer points.

Players were supposed to receive a warning with a time violation if they exceeded the limit, although several players have argued many get away with going unpunished while taking more time.

But ever since the 2018 tournament, there has be a new 25-second shot clock implemented which counts down live on the court in between points.

Australian Open shot clock

The Australian Open shot clock is in full view of players and fans (Image: GETTY)

Djokovic and Rafael Nadal are just two of the marquee players on the ATP Tour to regularly push the shot clock to it's limits.

And during the 2020 Australian Open final Djokovic once again fell foul to the shot clock on a number of occasions.

The world No 2 was punished with a number of time violations which led to him losing his first serve with Dominic Thiem able to take advantage.

Nadal isn't a huge fan of the shot clock either though as he believes players need the time some challenging conditions.

The shot clock has been in place since 2018

The shot clock has been in place since 2018 (Image: GETTY)

"I believe it is not something that is good for the future of the Tour," Nadal said two years ago.

"For me personally, I am not worried at all. I don't want to play for 10 more years. I can adapt easily to that.

"But in my opinion, it's not the same playing at 15 degrees [Celsius] or 18 degrees than playing at 35 degrees and that's why we have umpires, as they have to evaluate all the conditions to create the best show possible for the fans.

"In my opinion, having a clock with 25 seconds playing in some extreme conditions you cannot have the best show possible."