ATP Dubai Open: Top stars cruise

Novak Djokovic, Roger Federer and Andy Murray cruised into the quarterfinals of ATP Dubai Open on Wednesday.

Important results:

At Dubai: ATP Dubai Open:

Second round: Roger Federer bt Fernando Verdasco 6-4, 6-3; Novak Djokovic bt Andrey Golubev 6-1, 6-2; Tomas Berdych bt Simone Bolelli 7-6(7), 5-7, 6-0; Marsel Ilhan bt Feliciano Lopez 3-6, 7-5, 6-3; Sergiy Stakhovsky bt Denis Istomin 6-4, 3-6, 6-4; Andy Murray bt Joao Sousa 6-0, 6-2; Richard Gasquet bt Roberto Bautista 6-4, 3-6, 7-6(6); Borna Coric bt Marcos Baghdatis 6-4, 3-6, 6-6 (abandoned).

At Buenos Aires: ATP Argentina Open:First round: Facundo Arguello bt Albert Montanes 6-3, 6-2; Renzo Olivo bt Jarkko Nieminen 7-6(3), 5-7, 6-0; Federico Del Bonis bt Pablo Carreno-Busta 7-6(2), 3-0 (retd.); Blaz Rola bt Jiri Vesely 6-4, 6-3.

At Acapulco: ATP Mexico Open:First round: Kei Nishikori bt Alejandro Gonzalez 6-3, 7-5; Andreas Haider-Maurer bt Robin Haase 6-3, 2-6, 6-2; Viktor Troicki bt Daniel Garza 6-4, 6-3; Ivo Karlovic bt Teimuraz Gabashvili 6-4, 3-6, 6-2; Grigor Dimitrov bt Filip Krajinovic 6-3, 5-7, 6-0; Bernard Tomic bt Adrian Mannarino 3-6, 6-4, 6-4; David Ferrer bt Igor Sijsling 6-3, 7-6(4).

At Doha: WTA Qatar Open:

Second round: Petra Kvitova bt Jelena Jankovic 6-3, 1-1 (abandoned); Lucie Safarova bt Ekaterina Makarova 6-2, 6-7(5), 6-3; Agnieszka Radwanska bt Flavia Pennetta 6-1, 6-1; Venus Williams bt Barbora Zahlavova Strycova 7-5, 3-6, 7-6(5).