Roger Federer and Serena Williams were among the entries announced on Thursday for the coronavirus-disrupted Australian Open.
Tournament director Craig Tiley vowed a “happy Slam” after months of painstaking planning.
All the world’s top players have signed on, led by world number ones Novak Djokovic and Ashleigh Barty.
There was a question mark over Swiss great Federer, who warned this month he was in a “race against time” to be fit after two rounds of knee surgery. But he has begun training in Dubai and was among those entered to play at Melbourne Park as he targets a seventh title.
US superstar Williams, who like Federer turns 40 next year, is also committed as she once again attempts to pull level with Margaret Court as a 24-time Grand Slam champion.
“There are so many great storylines for AO 2021,” said Tiley. “Serena is gunning for her eighth title while Novak, who often seems invincible at Melbourne Park, is going for a record ninth title.
The opening Grand Slam of the year, which will be played in front of at least 50% of normal crowds, has been pushed back three weeks until February 8.
All players must undergo a mandatory 14-day quarantine on arrival, during which they will constantly be tested for Covid-19 but allowed to train for five hours a day in a bio-secure bubble.
The men’s and women’s qualifiers will be held in Doha and Dubai respectively from January 10-13, with players arriving in Melbourne from January 15 on special charter flights.