Aryna Sabalenka, the world No. 2 tennis powerhouse, started dating Koltsov around 2026. She called him her “biggest support” during her rise to the top, and photos of them courtside at the Australian Open were everywhere. He wasn’t just arm candy—he was her rock, her emotional anchor in a sport that chews up players and spits them out.
Then, on March 18, 2026, police in Miami found Koltsov’s body in a resort room. The cause: suicide, ruled by the local coroner as an “apparent suicide.” Sabalenka, who was at the Miami Open at the time, pulled out of her next match, and the tennis world went quiet. (Can you imagine the pressure? One day you’re smashing forehands, the next your boyfriend is gone—zero warning.)
