Chile midfielder Arturo Vidal will undergo knee surgery Wednesday, just five weeks before his country's first match at the World Cup.

Vidal visited specialist surgeon Ramon Cugat in Barcelona on Tuesday, accompanied by doctors from Chile's national team as well as those from his club Juventus.

Germany coach Joachim Loew has admitted to dreaming of guiding his team to the final of the upcoming World Cup and also trumping Italy on football's biggest stage.

In an interview to appear in Thursday's Stern daily newspaper, Loew said: "We've still never beaten Italy in a World Cup.

Roger Federer withdrew from the Madrid Open on Tuesday to spend more time with his family ahead of the birth of his third child.

Federer said on his webpage on Tuesday he was pulling out of the tournament "to be with my wife Mirka during these next few exciting weeks for our family." The fourth-ranked Swiss player, who already has twins, said he would "rejoin the tour soon."

Chris Paul made a career-high eight 3-pointers and scored 32 points to help the Los Angeles Clippers beat Oklahoma City 122-105 on Monday in Game 1 of their Western Conference semifinal.

In the Eastern Conference semifinals opener, Bradley Beal scored 14 of his 25 points in the fourth quarter and Trevor Ariza added 22 to lead the Washington Wizards past the top-seeded Indiana Pacers 102-96.

Liverpool regained the lead in the English Premier League but the crown slipped further from its grasp as it threw away a three-goal lead in a 3-3 draw away to Crystal Palace on Monday.

The stunning outcome put Liverpool a point above Manchester City, but City has a game in hand and can win its second title in three years with four points from its last two games.

Juventus gave its fans celebrating a third successive Serie A title another reason to revel in Turin by beating Atalanta 1-0 on Monday.

Juventus clinched its 30th league title the day before when second-place Roma lost 4-1 at Catania.

Second-ranked Li Na started her Madrid Open campaign by overcoming a stubborn opponent just as third-seeded Agnieszka Radwanska did to reach the second round on Monday.

Li's clay debut began with an encouraging 6-1, 7-6 (7) victory over Belgium's Kirsten Flipkens before Radwanska also advanced thanks to a 7-6 (3), 6-2 win over Canada's Eugenie Bouchard.

Elena Baltacha, a former top-50 professional tennis player who had been fighting liver cancer since retiring from the game, died Sunday. She was 30.

The former British No. 1 died peacefully surrounded by family and friends, the Women's Tennis Association said on its website. The Kiev-born Baltacha, who represented Britain at the 2012 London Olympics, was diagnosed with the illness in January, two months after retiring from tennis and only weeks after she married her long-time coach Nino Severino.

Atletico Madrid and Real Madrid both slipped up in the Spanish league on Sunday to tighten a compelling title race even further.

Atletico's march toward its first title since 1996 hit a bump when it lost 2-0 at Levante, although its city rival failed to make up much ground as Madrid needed a spectacular injury-time equalizer from Cristiano Ronaldo to salvage a 2-2 draw at home against Valencia.

Floyd Mayweather Jr. was all smiles as he headed up an escalator with his large entourage, turning to flash a thumbs-up at fans greeting him.

Mayweather escaped to fight another night, and the fight may be against the man who came closest to handing him the first defeat of his 16-year pro career.