Kyrgios has always been a critic of returning to competition amid the coronavirus pandemic.
Whether they play the US Open remains to be seen.
The tennis season has been at a standstill since mid-March due to the virus outbreak worldwide.
Last week world number three Dominic Thiem said that the tournament was "on shaky legs."
The Duchess of Cambridge is patron of the All England Lawn Tennis and Croquet Club and had earlier visited Bond Primary School in January 2018.
Simona Halep has expressed her concerns about the safety of playing in the Grand Slam.
Despite the coronavirus risk, the French Open will not be played behind closed doors.
The Duchess of Cambridge took over Queen Elizabeth's position as royal patron of All England Lawn Tennis and Croquet Club in 2016.
ATP chairman Andrea Gaudenzi said it was a lesson for other tournaments.
The Adria Tour has been cancelled as the fourth tennis player of the tournament tests positive.
Djokovic will also undergo a novel coronavirus test after other players were found positive.
Players will be undergoing daily temperature checks along with two COVID-19 tests every week during their stay in the USA
Despite winning his match against Zverev, Djokovic bowed out of the tournament
The announcement is likely to renew speculation about retirement for Federer.
For the dress-up game, the young girls made their sportsman father wear a make-shift tiara and a Scotsman's kilt.
The 38-year old Swiss star is running out of opportunities and his fans are unsure whether he will appear in Wimbledon again.
The cancellation of the oldest Grand Slam tournament leaves the season in disarray, with no tennis set to be played until mid-July.
The newly rescheduled French Open clashes with the timings of several ATP and WTA tournaments
The number of American coronavirus cases is now at over 500 and involves some 30 US states.
She became world number one in 2005, at the age of 18, and won the US Open the next year.
Enrique Iglesias and Anna Kournikova have welcomed their third child, a daughter, after keeping the pregnancy a secret.
The Serbian star now has 17 Grand Slam titles under his belt.
Thiem is attempting to secure his first Grand Slam title.
After beating Zverev in the semi-final, Thiem became the first Austrian man to reach the Australian Open final
Rod Laver Arena's roof was closed to combat severe weather conditions
The Serb is aiming to win his 17th Grand Slam title after he stormed into the final, where he will face either Thiem or Zverev
Either Thiem or Zverev will face Federer or Djokovic in the Australian Open 2020 Final
While Federer won their last clash at the ATP Finals in November, the Serb has a psychological edge at the Slams.
The 16-time Grand Slam winner is aiming to lift his 8th Australian Open title
The six-time champion's reward is a showdown against either long-time rival Novak Djokovic or big-serving Canadian Milos Raonic.