German second seed Alexander Zverev fought hard on Sunday to beat Karen Khachanov of Russia 4-6, 7-6 (7-4), 2-6, 6-3, 6-3 and advance to his maiden quarter-finals of the French Open tennis championships.
After a marathon match that lasted three hours and 29 minutes, Zverev earned his best-ever result in a Grand Slam, having previously made it as far as the last 16 round of Wimbledon in 2017, reports Efe.
The 21-year-old German is to face seventh-seed Dominic Thiem of Austria, who beat 19th-seed Kei Nishikori of Japan 6-2, 6-0, 5-7, 6-4.
--IANS
kk/bg
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