It is expected the event will be pushed back from its planned start date of January 18.
Nearly 100,000 children in the UK have taken part in Tennis for Kids over the past five years.
Covid-19 quarantine restrictions in the country would make holding the first grand slam of 2021 in its planned slot logistically difficult.
Zavialoff guided Konta to the French Open semi-finals last year.
The Russian Daniil Medvedev defeated Dominic Thiem to win the biggest title of his career.
The Russian came from a set down to defeat Dominic Thiem and complete an unbeaten week at The O2.
Medvedev came from a set down to defeat Dominic Thiem as the tournament bade farewell to London.
Roger Federer, Rafael Nadal and Novak Djokovic have dominated the men’s game.
Dominic Thiem recovered from 0-4 in the deciding tie-break with Djokovic, while Nadal served for the match against Daniil Medvedev.
Tennis Australia chief executive Craig Tiley is ‘confident we will have decisions soon’.
Thiem recovered from 4-0 in the deciding tie-break to reach the final at The O2 for the second straight year.
Zverev has been accused of serious assault by a former girlfriend.
The world’s top four players make up the semi-final line-up at The O2.
The world number two bounced back from his defeat by Dominic Thiem on Tuesday.
Thiem was already through to the semi-finals as the group winner.
Djokovic must beat Alexander Zverev on Friday to avoid an early exit from the ATP Finals.
Australian Open organisers are scrambling to try to find a satisfactory way of...
Thiem won two tie-breaks in the match at The O2.
The calendar for the new season beginning in early January has yet to be released.
The Russian lost all his matches on his debut last year.
Djokovic needed only an hour and 18 minutes to defeat Diego Schwartzman 6-3 6-2.
The event is being played behind closed doors because of the coronavirus pandemic.
The event will move to Turin next year after 12 years at The O2.
The Serb can tie Roger Federer’s tally of six ATP Finals victories.
Murray and Skupski need to get into the Sofia Open final to keep their hopes alive.
The Argentinian lost to Daniil Medvedev in Paris but has done enough to book his place at the O2 Arena.
World number two Nadal becomes only the fourth player in the open era to pass the milestone.
The Argentinian is in pole position to secure the eighth qualifying place.
The Romanian revealed she has suffered ‘mild symptoms’.