Top seed Novak Djokovic passed his first real test at this year's French Open with flying colours as he battled past Russia's Karen Khachanov 6-4 6-3 6-3 to reach the quarter-finals for the 14th time.
Novak Djokovic Photo: PHOTOSPORT
The 33-year-old claimed a fourth successive straight-sets victory in his latest quest for a second French Open title, but it was nowhere near as straightforward as the score suggests.
Djokovic faced stiff resistance before taking the first set and had an anxious moment when his attempted return off one Khachanov serve ricocheted off his frame and struck a line judge in the head, reviving memories of his U.S. Open debacle.
The Serb eased into his 47th Grand Slam quarter-final where he will face either German qualifier Daniel Altmaier or 17th seed Pablo Carreno Busta, the man Djokovic was facing in the U.S. Open fourth round when he was defaulted for hitting a line judge with a ball.
Stefanos Tsitsipas reached the quarter-finals of a Grand Slam for the second time as he brushed aside Grigor Dimitrov 6-3 7-6 6-2.
The Greek fifth seed was solid on serve throughout and played neatly as his Bulgarian opponent lost focus at crucial times under the roof of Court Philippe Chatrier.
Last year's ATP Finals winner Tsitsipas, whose best result at a major is reaching the Australian Open semi-finals in 2019, will next face Russian 13th seed Andrey Rublev, with a last-four clash with world number one Novak Djokovic looming.
Czech left-hander Petra Kvitova reached the women's quarter-finals for the first time in eight years as she overpowered China's Zhang Shuai 6-2 6-4.
On yet another chilly day in the French capital, seventh seed Kvitova's superior firepower proved decisive as she posted her fourth successive straight-sets victory.
With so many big names already out, Kvitova will sense a golden title opportunity as she heads into a quarter-final against either Germany's Laura Siegemund or Spain's Paula Badosa, neither of whom are seeded.
-Reuters