Alexander Zverev defeated Bulgarian Grigor Dimitrov in the round of 2 in 17:6 hours. The 26-year-old Olympic champion is in the top eight for the third year in a row at the clay court classic in Paris.
He could meet last year's Norwegian finalist Casper Ruud or youngster Holger Rune from Denmark in the quarter-finals. The German is also the favorite in the next duel with the winner of the game between Tomas Martin Etcheverry and Yoshihito Nishioka from Japan.