Alexander Zverev reached his 21st Masters 1000 semi-final on Monday by ending the Canadian title defence of Alexei Popyrin ...

In the past year, though, Fritz has continued his slow and steady slog upward, while Rublev has spun his wheels. Fritz made the final at the US Open last year, and the semis at Wimbledon last month.

Top-seeded Alexander Zverev rallied to defeat No. 18 Alexei Popyrin of Australia 6-7 (8), 6-4, 6-3 on Monday to reach the ...