The No. 1-ranked Barty won her second successive Miami title, and the Australian was already in control of the match when Andreescu turned her right foot while hitting a forehand and sprawled to the hard court.
The absence of spectators has not just robbed tournaments of atmosphere and sapped the energy of players who thrive on it, but has also had a savage impact on finances.
Sania and her Slovenian partner Klepac lost 5-7, 6-2, 5-10 to America's Nicole Melichar and Dutch player Demi Schuurs in one hour and 28 minutes.
Sania and Klepac made short work of fourth seeds Anna Blinkova and Gabriela Dabrowski 6-2, 6-0 to reach the last four round.
Sania and her Slovenian partner Andreja Klepac won 6-4, 6-7(5), 10-5 against Nadiia Kichenok and Lyudmyla Kichenok of Ukraine to enter the quarterfinals.
The 24-year-old Queenslander has not played a match since February, opting not to defend her French Open title and also skipping the US Open in New York as the novel coronavirus wreaked havoc on global sport.
Dagmara admitted the charges of match-fixing.
Raina and Gorgodze defeated Zadoinov Bolsova and Aliona Juvan 6-4, 3-6, 10-6 in the final of the $100,000 hard court event at the Habtoor Grand Beach Resort and Spa in Dubai.
Iga Swiatek, who became the first Polish player to win a Grand Slam singles title when she beat Kenin in the French Open final, was named the WTA's Most Improved Player of the Year.
The Australian Open looks likely to be pushed back from its scheduled January 18 start as Tennis Australia continues talks with local government over COVID-19 protocols to be established for Melbourne Park.