Russia's Khachanov reached the fourth round of the Australian Open
It took the tennis player three and a half hours to succeed.
Eighteenth seeded at the Australian Open, Russian tennis player Karen Khachanov set his own record by reaching the fourth round of the prestigious tournament.
It took him four sets and three and a half hours to reach the fourth round against American Francis Tiafoe.
The fight was hard fought in every segment and the final score was 6:3, 6:4, 3:6, 7:6 (11:9) in favor of the Russian.
At the next stage of the tournament, Yoshihito Nishioka of Japan, the thirty-first seeded player in the tournament, will be Khachanov's opponent.