Doha: World No.1 Roger Federer made light of the chilly conditions to ease into the quarter-finals of the Qatar Open with a 6-2, 6-4 win over Russian Evgeny Korolev on Wednesday.
"I was hitting the ball hard because the weather was quite chilly. Evgeny is a promising player, so I didn't want to take chances," said Federer.
World No.2 Rafael Nadal also breezed into the last eight with a 6-2, 6-2 victory over Italian Potito Starace.
ON TRACK: Rafael Nadal serves to Potito Starace during the ATP Qatar Open tennis tournament in Doha.
"I've been playing well lately. Today's victory underlines that I'm in very good form," said the Spaniard. "Potito has always been a tough opponent for me."
Federer next faces Latvian Ernests Gulbis while Nadal will face Belgian Steve Darcis.
Third seeded Russian Nikolay Davydenko breezed past Switzerland's Marco Chiudinelli 6-3, 6-4 and will now take on big-serving Croatian Ivo Karlovic, the seventh seed.