Aryna Sabalenka intends to play in the Miami Open following the death of her boyfriend, former ice hockey player Konstantin Koltsov.
Koltsov, who represented Belarus at the 2002 and 2010 Winter Olympics, has died at the age of 42.
He also spent three years in the NHL with the Pittsburgh Penguins.
Compatriot Sabalenka, 25, is seeded second in Miami and due to enter the tournament at the second-round stage later this week.
She has a first-round bye and will play the winner of Tuesday's match between Simona Halep and Paula Badosa on Thursday or Friday.