Toronto Masters: Top seed Daniil Medvedev, birthday boy Stefanos Tsitsipas advance into quarter-finals

HIGHLIGHTS Daniil Medvedev, Stefanos Tsitsipas storm into quarter-finals Top seed Daniil Medvedev beat James Duckworth 6-2, 6-4 Tsitsipas celebrated his 23rd birthday with 6-3, 6-2 win over Khachanov Top-seeded Daniil Medvedev of Russia defeated Australia’s James Duckworth 6-2, 6-4 to advance to the National Bank…