Pakistan, Oct. 25 -- Third-seeded Alexander Bublik of Kazakhstan rallied past fifth-seeded Russian Karen Khachanov 4-6, 7-6 (5), 7-6 (5) in Friday's Almaty Open quarterfinals in Kazakhstan.

Bublik hammered 21 aces and finished with 49 winners in his first match of the tournament after advancing via a second-round walkover. Khachanov secured the only service break of the match in the opening set, but Bublik responded by winning both ensuing tiebreakers. He will face top-seeded Daniil Medvedev, who reached the semifinals with a 6-4, 6-4 victory over France's Terence Atmane. Medvedev did not face a break point and won 91% of his first-serve points.

Seventh-seeded Stefanos Tsitsipas of Greece also advanced in straight sets, defeating Austra...