"It is with deep sorrow that we inform you that the coach of Salavat Yulaev, Konstantin Koltsov, has passed away," said Salavat Yulaev in a statement. "He was a strong and cheerful person, loved and respected by players, teammates and fans. Konstantin forever wrote himself into the history of our club. May he rest in peace."
The passing of her partner comes five years after Sabalenka's beloved father, Sergey, died at the age of 43 in 2019.
Sergey introduced daughter Aryna to tennis when he was driving by a tennis court one day with his daughter, stopped the car and brought her to the court.