U21 Women's singles winner Doo Hoi Kem (L) and U21 Men's singles winner Lam Siu Hang of Hong Kong, China, pose with their trophies during the awarding ceremony for the U21 Men's and Women's singles event at the 2017 ITTF World Tour Platinum, Qatar Open in Doha, capital of Qatar, Feb. 22, 2017. (Xinhua/Nikku)