Novak Djokovic is seeded number 1 in the US Open and, unsurprisingly, is the strongest favourite to win the crown at the Flushing Meadows.
The young Russian player had an almost memorable week in Cincinnati, barring the final when he was comfortably beaten in a one-sided clash.
Russian sensation Rublev registered his maiden victory over his compatriot to reach the final of the Western & Southern Open.
Djokovic has already won three Grand Slams this year and will be looking to complete a calendar-year Grand Slam at the US Open.
Naomi Osaka was stunned 3-6, 6-3, 6-3 by wild card entry Jil Teichmann in the Western & Southern Open's third round in Cincinnati.
Fans might have been hopeful of a tight encounter but Medvedev dominated the entire game and secured a vital win.
The scoreline at the end of the match was 6-2, 6-2 in favour of the Russian and he will now face another American, Reilly Opelka in the final
It was a historic victory for Opelka as it is the first time he has reached the final of an ATP Masters 1000 competition.
The Spaniard, who defeated World No. 2 Medvedev earlier in Tokyo, survived a thriller against the Serbian to clinch the bronze on Saturday.
The Serbian superstar cruised into the semifinal with a straight-set victory, while second seed Daniil Medvedev got knocked out.