Denis Istomin of Uzbekistan competes with Prajnesh Gunneswaran of India during tennis men's single semifinal at the 18th Asian Games 2018 in Palembang, Indonesia on August 24, 2018.(Xinhua/Veri Sanovri)

Denis Istomin of Uzbekistan competes with Prajnesh Gunneswaran of India during tennis men's single semifinal at the 18th Asian Games 2018 in Palembang, Indonesia on August 24, 2018.(Xinhua/Veri Sanovri)