Sinner beats Mannarino to reach Cincinnati last eight

Image caption, Jannik Sinner has won four Grand Slam titlesWorld number one Jannik Sinner reached the Cincinnati Open quarter-finals with a 6-4 7-6 (7-4) victory over a stubborn Adrian Mannarino.

Sinner quickly took control of the match when he broke the 37-year-old Frenchman in the third game.

Mannarino, ranked 89th in the world, saved a break point in the seventh game with an ace but the left-hander could not stop his opponent going on to claim the first set.

Play was suspended for rain with Sinner 40-30 on serve and 2-1 down in the second set, before the players resumed about two hours and 45 minutes later.

Mannarino proved a more obdurate competitor in the second set but, despite saving…