Karen Khachanov warmed up the Korean

The main surprises of the first day of Wimbledon tournament became defeats of the second racket of the world of the Japanese Naomi Osaka, and also Alexander Aleksandrovich Zverev from Germany and Greek Stefanos Tsitsipas from top-10. Meanwhile Russians Karen Khachanov and Daniil Medvedev left in the second circle. However, for this purpose they needed slightly more time, than was planned...