MELBOURNE, Feb 17 (Reuters) - Russian Daniil Medvedev secured a spot in the Australian Open semi-finals with a 7-5 6-3 6-2 victory over friend and compatriot Andrey Rublev on Wednesday, extending his winning streak to 19 matches.
It was Rublev's fourth straight defeat to Medvedev, who has not lost a match since October.
Fourth seed Medvedev had won all his previous matches against Rublev in straight sets and it was no different at a scorching Rod Laver Arena on Wednesday.
ATP Finals winner Medvedev raised his game during the important points and sealed the contest with a forehand winner to set up a last-four meeting against either second-seeded Spaniard Rafa Nadal or fifth seed Stefanos Tsitsipas of Greece.