After winning the PNB Paribas Open last week, Maria Sharapova is aiming for a rare double when she lines at the Sony Open.

Only two players in WTA history have won back-to-back Indian Wells and Key Biscayne titles: Steffi Graf in 1994 and 1996, and Kim Clijsters in 2005.

McLaren has apologized for a software-related issue on an engine control unit it supplies to Formula One teams and which contributed to Red Bull driver Mark Webber's poor start at the Australian Grand Prix.

McLaren said in a statement Wednesday that the "electronic units themselves ran without incident in Melbourne" but that a software glitch resulted in Webber's "garage data system having to be re-started during the formation lap."

Andre Miller scored 13 of his season-best 20 points in the fourth quarter as the Denver Nuggets beat the Oklahoma City Thunder 114-104 Tuesday night for their first 13-game winning streak since joining the NBA.

A big performance on his 37th birthday started with an inspirational speech and finished with Miller's play doing all the talking for him.

LeBron James and the Miami Heat escaped Boston with their 23rd consecutive win and now have the second-longest winning streak in NBA history.

Five years to the day after the Celtics ended Houston's winning streak at 22 games, James scored 37 points and made the go-ahead basket with 10.5 seconds left in Miami's 105-103 victory on Monday night.

Former England striker Michael Owen announced on Tuesday that he will retire from professional football at the end of the current season.

"It is with an immense amount of pride that I am announcing my intention to retire from Professional Football at the end of this season," Owen wrote on his personal website.

Philadelphia 76ers center Andrew Bynum will undergo surgery on both knees on Tuesday, meaning he will miss the entire NBA season due to injury, the team announced on Monday.

Bynum, a former All-Star with the Los Angeles Lakers who was traded last August in a four-team deal that sent Dwight Howard from Orlando to the Lakers, might never play for the 76ers. He will become a free agent after this season.

Rolf Soerensen, one of Denmark's most successful professional cyclists, admitted Monday to using blood-boosting EPO and cortisone in the 1990s, ending more than a year of denials.

"I used EPO periodically in the 90s," Soerensen, now 47, said in a statement.

Madrid mayor Ana Botella hailed the first day of the International Olympic Committee's Evaluation Commission's four-day inspection of the city's candidacy for the 2020 Olympic Games a success.

After an introduction from Spanish prime minister Mariano Rajoy, the committee had the opportunity to visit four of the proposed sites, including Real Madrid's Santiago Bernabeu stadium.

Spanish Prime Minister Mariano Rajoy told IOC inspectors Monday that much of the infrastructure needed for Madrid's 2020 Olympic bid is already built, emphasizing a low-cost approach at a time of financial austerity.

Rajoy welcomed the IOC's evaluation commission at the start of its four-day inspection of Madrid, which is competing against Tokyo and Istanbul.

Two men were arrested over alleged racially aggravated public order offences at Chelsea's Premier League match with West Ham United on Sunday, police have announced.

London's Metropolitan Police is also investigating reports that Chelsea's players had coins thrown at them during their side's 2-0 victory at Stamford Bridge.