Real Madrid assistant manager Aitor Karanka believes his side can take heart from their 2-1 win over Atletico Madrid on Saturday night as they try to overturn a 4-1 deficit from the first-leg of their Champions League semi-final against Borussia Dortmund on Tuesday.

Real made eight changes from the side that started in Germany for the derby clash at the Vicente Calderon, but still managed to emerge victorious thanks to Juanfran's own goal and a fine second-half strike from Angel Di Maria.

Manchester City responded to the disappointment at conceding the Premier League title to Manchester United by beating West Ham 2-1 on Saturday to strengthen its grip on second place.

Sergio Aguero put City ahead in the 28th minute after being set up by Samir Nasri, who cut through the West Ham defense by playing a one-two with David Silva.

Defending champion Maria Sharapova came from behind in the third set to beat Angelique Kerber 6-3, 2-6, 7-5 Saturday and earn a spot in the final of the Porsche Grand Prix.

The top-seeded Russian committed two consecutive double-faults to drop her serve at the start of the decisive set. But Sharapova won the last eight points and clinched the match when her third-seeded German opponent hit a backhand long. Sharapova had wasted a chance to serve out the match in the ninth game after taking a 5-3 lead.

Speaking publicly for the first time since returning from a medical leave of absence, Barcelona coach Tito Vilanova announced he will continue at the helm of the Spanish team next season.

Vilanova, speaking with a noticeably raspy voice, said Friday: "I have the strength to continue as long as my health allows me too. I never thought about quitting."

UEFA has fined Inter Milan 45,000 euros ($58,500) for its fans' racist abuse against Tottenham forward Emmanuel Adebayor during a Europa League match.

UEFA's sanction included charges over other crowd issues, including Inter's "insufficient organization" of the match, plus objects thrown and fireworks lit by fans.

Liverpool striker Luis Suarez will serve a 10-match ban for biting an opponent during a Premier League game after deciding on Friday not to appeal one of English football's harshest sanctions for on-the-field misbehavior.

"I would like to explain to everybody that I decided to accept the ban because whilst 10 games is clearly greater than those bans given in past cases where players have actually been seriously injured," Suarez said in a statement on his personal website, "I acknowledge that my actions were not acceptable on the football pitch so I do not want to give the wrong impression to people by making an appeal."

German-born Ghanaian Kevin-Prince Boateng claimed in a newspaper interview Friday that being targeted with racist abuse from some fans almost prompted his departure from Italy.

Boateng, a forward with AC Milan, hit the international headlines in January when he led his team off the pitch during a friendly with third division side Pro Patria after being targeted with racist 'bu-bu' chants from a handful of fans.

Bayern Munich has denied a report that Borussia Dortmund forward Robert Lewandowski has signed a contract with the Bundesliga champions.

Bayern issued the denial Friday after the mass-circulation Bild daily reported, without citing sources, that the Poland striker had already signed two contracts with Bayern — one starting in 2013 and one in 2014.

The ageless Ray Allen scored 23 points, and broke the NBA career playoff record for 3-pointers, as the Miami Heat used another of their patented runs to win 104-91 at the Milwaukee Bucks on Thursday for a 3-0 lead in their first-round series.

In the day's other playoff games, the Chicago Bulls held off Brooklyn to take a 2-1 lead, while Memphis got the win it needed, beating the Los Angeles Clippers to cut the series deficit to 2-1.

David Luiz scored with the final kick of the match to clinch a 2-1 win for Chelsea at Basel in a Europa League semifinal, first leg on Thursday.

Luiz deceived goalkeeper Yann Sommer with a free kick in the fourth minute of stoppage time after Basel defender Fabian Schaer had equalized with a disputed 87th-minute penalty.