Bucharest - Second-seeded Gael Monfils has advanced to the quarter-finals of the Nastase Tiriac Trophy by beating Mikhail Youzhny 6-1, 6-2 on Thursday.
It was the Frenchman's first win over Youzhny in their fourth meeting.
Monfils will next face eighth-seeded Simone Bolelli, who advanced to the quarterfinals for the third time this year by beating Andreas Haider-Maurer 6-4, 6-4.