- Russian into last four after Sebastian Korda retires with injury
- Khachanov has signalled support for disputed Artsakh region
Karen Khachanov continued his career resurgence by moving into his second consecutive grand slam semi-final at the Australian Open on Tuesday, but even as he marches through the draw, his message has commanded as much attention as his tennis.
Khachanov advanced past Sebastian Korda after the American retired with a right wrist injury when trailing 7-6 (5), 6-3, 3-0.