Play finally got underway at the WTA and ATP Miami Open on Friday after six hours of rain delays.
Following the long wait, world No. 2 Aryna Sabalenka took to the court to face Spain's Paula Badosa just days after the death of her former boyfriend.
Belarusian Sabalenka walked onto the court wearing an all-black outfit, a choice matched by her close friend Badosa.
Sabalenka said she was "heartbroken" by the death of former boyfriend Konstantin Koltsov in a statement on Wednesday, where she revealed they had not been a couple at the time of his death.
Koltsov died on Monday with Miami police saying he had jumped from the balcony of a room at a resort in an "apparent suicide".
Koltsov, a former NHL ice hockey player and coach, was 42 years old.
Top-ranked Iga Swiatek is scheduled to face Italy's Camila Giorgi while Naomi Osaka of Japan takes on Ukraine's Elina Svitolina in later matches.
Men's world No 3 Jannik Sinner of Italy is scheduled to face compatriot Andrea Vavassori while fourth-ranked Daniil Medvedev of Russia takes on Hungarian Marton Fucsovics.