Federer rolls on in Rome

Updated: May 17, 2012

Roger Federer continued his good clay court run on Wednesday as he saw off Carlos Berlocq of Argentina 6-3 6-4 to reach the third round of the Rome Masters.

Second seed Rafael Nadal, beaten in the third round on the blue clay in Madrid, looked delighted to be back on the red stuff as he beat German Florian Mayer 6-1 7-5.

Tomas Berdych, beaten by Federer in the Madrid final, eased past Lukas Kubot 6-4 6-1 to reach round three, while Juan Martin Del Potro also advanced.

Top-ranked Victoria Azarenka has withdrawn from the Italian Open citing a right shoulder injury.

Tournament organisers say Azarenka made the decision after routing Shahar Peer of Israel 6-1, 6-2 in the second round on Wednesday night.

Serena Williams made it two wins in the space of 18 hours as she battled back to beat Russia’s Nadia Petrova 4-6 6-2 6-3.

Venus Williams improved her chances of making the Olympics on merit as she battled to a 7-6, 6-1 win over Ekaterina Makerova of Russia.

There were defeats, though, for world No 3 Agnieszka Radwanska and former world No 1 Caroline Wozniacki.

Radwanska was ousted 6-4 4-6 6-1 by Petra Cetkovska of the Czech Republic while Wozniacki, suffering from sinus problems, quit when trailing 6-4 4-0 to Anabel Medina Garrigues of Spain.