Venus Williams waited an extra day because of rain to begin her bid for a record fourth gold medal in Olympic tennis, then defeated recent French Open runner-up Sara Errani of Italy 6-3, 6-1. Serena completed a July sweep of Poland's Radwanska sisters by beating Urszula in the second round, 6-2, 6-3. She defeated Radwanska's sister, Agnieszka, in the Wimbledon final this month. Federer also reached the third round, beating Julien Benneteau of France 6-2, 6-2.
"What a good day for fans between me, Venus, Roger and all the other players," Serena Williams said. "It's really such a great experience."
Also Monday, Switzerland stripped a soccer player of his Olympic accreditation after he sent a threatening and racist message on Twitter about South Koreans. The comments by Michel Morganella came hours after the Swiss lost to South Korea, 2-1, on Sunday.
The 23-year-old player said in the tweet that South Koreans "can go burn" and referred to them as a "bunch of mongoloids."
Swiss Olympic team chief Gian Gilli said via a translator at a news conference that Morganella "discriminated against, insulted and violated the dignity of the South Korea football team as well as the South Korean people.
Morganella later released a contrite statement through the Swiss Olympic team: "I am sincerely sorry for the people of South Korea, for the players, but equally for the Swiss delegation and Swiss football in general. It's clear that I'm accepting the consequences."
Morganella is the second athlete kicked off an Olympic team in London for offensive Twitter comments. Last week, triple jumper Voula Papachristou was kicked off Greece's Olympic team for her comments on Twitter mocking African immigrants and expressing support for a far-right political party.
A Colombian soccer player was suspended for two games after U.S. forward Abby Wambach said she was "sucker-punched" in the right eye by Lady Andrade during the 3-0 win by the U.S. on Saturday. Wambach called for FIFA to take action, while Andrade called it "an accident."
FIFA says its disciplinary committee suspended Andrade for a group match Tuesday against France and for the quarterfinals if Colombia advances.
The rest of the Olympic action Monday:
Candace Parker and the U.S. women's team are 2 for 2 in London, and this one was a laugher.
Parker had 14 points and 12 rebounds to help the United States to a 90-38 rout against Angola.
The Americans (2-0) have won their last 35 games in the Olympics and four consecutive gold medals while Angola is looking for its first victory.
France had the most surprising win of the day, edging Australia 74-70 in overtime. Emilie Gomis scored all 22 of her points after halftime.
Belinda Snell connected from just past half court at the end of regulation, giving Australia a chance. But the Aussies had to play the extra session without stars Lauren Jackson and Liz Cambage — both had fouled out.
China, Turkey, Russia and Canada also won on the women's side.
Light heavyweight Damien Hooper rallied from a third-round deficit for a 13-11 victory over Marcus Browne, handing the U.S. team its first loss in London after a 4-0 start.
Hooper and Browne put on perhaps the best three minutes of the day after both fighters cautiously fought the first two rounds. The Australian raised his aggression in the third to overwhelm Browne, a Staten Island, N.Y., product.
In the afternoon session, Jordan's first Olympic boxer, Ihab Almatbouli, won his opening bout, while Afghanistan's first Olympic boxer, flyweight Ajmal Faisal, was eliminated in the evening. Cuban teenager Robeisy Ramirez and Iranian light heavyweight Ehsan Rouzbahani also advanced.
Light heavyweight Oleksandr Gvozdyk earned the powerful Ukrainian team's first victory in London, forcing a standing-eight count for Belarus' Mikhail Dauhaliavets midway through an 18-10 decision.
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