Juan Ignacio Chela reaches quarters

BUCHAREST, Romania -- Defending champion Juan Ignacio Chela of Argentina advanced to the quarterfinals of the Nastase Tiriac Trophy on Wednesday, defeating Florent Serra of France 6-1, 6-0.

The top-seeded Chela will meet seventh-seeded Andreas Seppi in the quarterfinals. The Italian defeated Igor Andreev of Russia 6-2, 3-6, 6-1.

Sixth-seeded Potito Starace of Italy withdrew while trailing Pere Riba of Spain 6-1, 3-2.