Karen Khachanov topples fiery Daniil Medvedev at Monte Carlo

(Photo credit: Geoff Burke-USA TODAY Sports)
No. 15 seed Karen Khachanov took down No. 4 Daniil Medvedev 6-3, 7-5 in an all-Russian Round of 16 match at the Rolex Monte Carlo Masters on Thursday in Monaco.

Medvedev got into a heated exchange with an umpire late in the match, when he led the second set 5-4 and served for set point. Khachanovfought back to win the game, but Medvedev was upset that a line judge made an appa