Once a sport in decline, tennis may well be making a comeback of the kind seen in those epic battles of yesteryear between Roger Federer and Rafael Nadal.

The fact that tennis naturally involves social distancing has seemed to help its cause.

This tennis renaissance is a bit ironic though, given the antics of the pros.

They weren't keen on a fortnight of hotel quarantine, prompting fears that next year's Australian Open could be moved overseas. The Australian Open, it was feared, could become the Dubai Open or the Doha Open.

Tennis Australia chief executive Craig Tiley hosed down any such suggestion, saying: "We're going to find a way to get the players here who are currently travelling the world in a bubble".

Mind you, he did add this: "We are the only country where quarantine is required".

So, what will anti-vaxxer Novak Djokovic [AKA Novaxx] do if he's forced to show a vaccine passport?

"Personally, I am opposed to vaccination, and I wouldn't want to be forced by someone to take a vaccine," he said last April.

He did clarify his vaccine stance, telling The New York Times: "My issue here with vaccines is if someone is forcing me to put something in my body. That I don't want. For me that's unacceptable".

His body is a temple, but he did seemingly put plenty of booze in it during a widely publicised party at a charity tournament he staged last June, which caused a Covid outbreak.

That was all voluntary, though.

Not so long ago, tennis was being replaced by the likes of gym-going, cycling, yoga, pilates and good old fashioned walking.

But a rise in interest has led to a new series called the Lake Macquarie and Newcastle Interclub Challenge.

Junior and adult teams will vie for champion club status in a round-robin format.

Tennis has traditionally been known as an individual sport, although the Davis Cup did have its moment in the sun. Team-based tennis, though, is now being touted as an alternative to traditional team sports.

Tennis NSW regional manager Andrew Yapp said the tennis community was "coming together to drive more team-based play".

"The potential for tennis to flourish as a team sport is being realised," he said.

Total Tennis Mount Hutton head coach Matt Abbott said junior and senior players were "keen to play more team tennis".

Just like the doctors and nurses who treat them, kids who get seriously sick are a bit like superheroes.

A clever bloke named Jason Sotiris knows this all too well. His daughter Angela was in hospital for months battling cancer.

Jason felt helpless that he couldn't put her in clean clothes, as it was too challenging with the IV drip and other medical equipment.

He thought there had to be an easier way. So he invented Supertee, a children's medical garment that bypasses medical lines and tubes and makes it easier to change tops. The underarms open easily.

More than 5000 of these tees have made their way into hospitals across the country, while another 8000 will be donated to sick children with the public's help by August.

John Hunter Hospital will on Friday receive a donation of 200 Supertees.

Sounds super.