The men's ATP and women's WTA Tours have been suspended until June 7, with the French Open postponed and Wimbledon facing possible postponement or even cancellation.
Rafael Nadal easily defeated unseeded Taylor Fritz in straight sets, 6-3, 6-2, in the final of the Mexico Open.
Novak Djokovic is now on an 18-0 winning run this season, and 21-0 overall since late 2019.
Novak Djokovic also tightened his grip on the world number one ranking in the face of competition at this week's Acapulco event from second-ranked rival Rafael Nadal.
Rafael Nadal will open his Acapulco campaign on Tuesday against 54th-ranked compatriot Pablo Andujar.
Novak Djokovic owns a perfect 14-0 record this season after winning a title for Serbia at the ATP Cup followed by a record-extending eighth Australian Open crown.
Novak Djokovic is clear-sighted about his goals: overtaking Rafael Nadal's 19 Major titles and Roger Federer's 20 to become the all-time Grand Slam king, and outdoing the Swiss master's record 310 weeks in the top ranking.
Novak Djokovic beat Austrian Dominic Thiem in five sets at the Rod Laver Arena to lift the Australian Open title a record extending eighth time.
Novak Djokovic defeated Dominic Thiem 6-4, 4-6, 2-6, 6-3, 6-4 to win record eighth 8th title at the Australian Open.
Australian Open final: Novak Djokovic is 6-4 in their career head-to-heads, but Dominic Thiem has won four of the last five.
Dominic Thiem came from a set down to outlast Alexander Zverev and make his first Australian Open final on Friday.
Roger Federer was suffering from a groin injury during his Australian Open semi-final defeat to Novak Djokovic.
Novak Djokovic shattered the hopes of ailing rival Roger Federer on Thursday to sweep into a record eighth Australian Open final and move closer to his 17th Grand Slam crown.
Australian Open Semi-finals Highlights: After a come-from-behind win in the opening set, Novak Djokovic dominated the play in the next two sets to beat Roger Federer 7-6 (7-1), 6-4, 6-3 in the semi-final.
Novak Djokovic teared up as he spoke about late NBA legend Kobe Bryant who died in a helicopter crash on Sunday.
Novak Djokovic beat Milos Raonic 6-4, 6-3, 7-6 (7/1) in the Australian Open quarter-finals.
Novak Djokovic and Roger Federer once again showed why they are adored by fans across the globe.
Novak Djokovic beat Diego Schwartzman 6-3, 6-4, 6-4 on Rod Laver Arena to book a quarter-final clash with big-serving Milos Raonic.