Mikhail Kukushkin, a veteran of the professional tennis circuit, has announced his retirement after 20 years in the sport. The Kazakh player, who achieved a career-high ranking of No. 39 and won an ATP title, expressed his feelings about the changing landscape of tennis. Kukushkin noted that he is witnessing a generational shift as younger players enter the game, reshaping how tennis is played. His retirement marks the end of an era for players who have competed alongside him.