Viktor Troicki_

Viktor Troicki is a Serbian tennis coach and a former professional player. He won three singles and two doubles titles on the ATP Tour. Troicki won his first ATP singles title at the 2010 Kremlin Cup, and his second and third ATP singles titles at the 2015 and 2016 Apia International Sydney. His biggest achievements were a career-high singles ranking of world No. 12 and winning the deciding rubber in Serbia's Davis Cup final against France in 2010. Since then, in every Davis Cup he attended, he has contributed to Serbia reaching a quarterfinal or better. He is known for serving a 12-month ban for an anti-doping rule violation in 2013–14 for missing a blood test. By winning the inaugural ATP Cup in 2020, Troicki became the first player in tennis Open Era history to win all three major team competitions. In December 2020, Troicki was appointed captain of the Serbian team for the Davis Cup and ATP Cup.