Alex De Minaur picked up his first win in over a month after defeating Francisco Cerundolo in Hamburg, with Ben Shelton also winning.
Jannik Sinner has won each of the last six ATP Masters 1000 tournaments, while stretching his winning streak in the format to 34 matches.
Jannik Sinner becomes the second player to win all nine Masters 1000 events after beating Casper Ruud in Rome.
Jannik Sinner continues to create history, as the world number one matches Novak Djokovic and Rafael Nadal with his latest achievements.
Rublev survives a three-and-a-half-hour epic to beat Popyrin and reach the last-16 in Cincinnati
A break in each set was enough to see Carlos Alcaraz beat Hamad Medjedovic & secure his 50th win of the season
Two unusual interruptions don't distract Jannik Sinner in his win over Gabriel Diallo
Holger Rune eased past American Alex Michelsen to reach the round of 16 at the Cincinnati Open
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