On a day when only three seeds were in action, Taiwan’s Lu Yen-hsun was defeated by Australian teenager Bernard Tomic 7-6 (7/5), 6-3 in the first round of the Rogers Cup on Monday.
Tomic will face France’s Jo-Wilfried Tsonga, seeded 13th, who survived a couple of wobbles before knocking out Italian Fabio Fognini 6-4, 7-6 (7/0).
Juan Martin Del Potro stormed to a 6-4, 6-0 win over Finland’s Jarkko Nieminen as the Argentine continues his impressive comeback with the US Open on the horizon.
Del Potro, the 2009 US Open champion, is on the comeback trail after missing eight months of last season recovering from wrist surgery.
The 22-year-old opened the season with second round losses in Sydney, but has been in red-hot form since, posting a 34-7 record that included wins at Delray Beach and Estoril.
Meanwhile, Roger Federer turned 30 on Monday, but it was fellow Swiss Stanislas Wawrinka who gave himself a present as he outclassed David Nalbandian 6-1, 6-4 to reach the second round.
Wawrinka, who won the 2008 Olympic doubles gold medal alongside Federer, said that while he would not go so far as to give Federer a present, he has the utmost respect for his compatriot as a player and a friend.
Latvia’s Ernests Gulbis, riding the momentum from his hard court win in Los Angeles, rallied past former world No. 1 Juan Carlos Ferrero of Spain 3-6, 6-1, 7-5.
Novak Djokovic, Rafael Nadal, Federer and Andy Murray, looking to win the title for a third successive time, were to return to action yesterday for the first time since Wimbledon.
Qualifier Galina Voskoboeva upset France’s Marion Bartoli 6-3, 6-3 to reach the second round of the -Rogers Cup on Monday.
Kazakhstan’s Voskoboeva, currently ranked 135th in the world after reaching a career high of 64th in February of 2009, arrived in Toronto after reaching the first semi-final of her career at Baku last month.
Bartoli, ranked ninth in the world and seeded ninth, had -trouble with her serve and double-faulted four times. However, she said her serve was just one of her problems.
Romanian qualifier Simona Halep pulled off another upset, rallying to defeat 12th-seeded Russian Svetlana Kuznetsova 4-6, 6-4, 6-3.
Kuznetsova, ranked 15th in the world, had 50 unforced errors.
Tenth-seeded Samantha Stosur of Australia, who dropped out of the top 10 on Monday for the first time since April last year, advanced with a 4-6, 6-2, 6-3 victory over Ayumi Morita of Japan.
The top-eight seeds at this US Open tuneup have first-round byes.