Juan Mata is on the brink of becoming the most expensive player in Manchester United's history after Chelsea accepted the Spain midfielder's request to leave Stamford Bridge.

Mata will undergo a medical examination with United ahead of a club-record 37 million pound ($61 million) move to the Premier League champions, Chelsea manager Jose Mourinho said Friday.

It's official: Madonna will perform at the Grammy Awards.

A Friday news release from The Recording Academy had no other details about the seven-time Grammy winner's appearance, however, which has been a rumor for some time.

Rafael Nadal continued his dominant streak over Roger Federer to reach the Australian Open final for the third time, beating the 17-time major winner 7-6 (4), 6-3, 6-3 Friday night to set up a championship decider against No. 8-seeded Stan Wawrinka.

Nadal now has won 23 of his 33 matches against Federer, including nine of 11 in the majors. The 27-year-old Spaniard is one victory away from being the first man in the Open era to win all four majors at least twice, and from joining Pete Sampras in second place on the list of all-time Grand Slam winners with 14.

The U.S. Food and Drug Administration says there's no reason to believe that the coloring added to sodas is unsafe. But the agency is taking another look just to make sure.

The agency's announcement comes in response to a study by Consumer Reports that shows 12 brands of soda have varying levels of 4-methylimidazole — an impurity found in some caramel coloring.

Women's ski jumping will finally make its Olympic debut in Sochi — 90 years after the men competed in the sport for the first time at the Winter Games. For the best female jumpers in the world, Feb. 11 will be a momentous day after years of fighting for the right to compete, including an unsuccessful court case to be included in Vancouver four years ago.

The International Olympic Committee finally decided in April 2011 to add women's jumping to the Sochi program. The delay can be partially blamed on Eddie "The Eagle" Edwards, whose terrible form and questionable bravado at the 1988 Calgary Games brought the wrong kind of publicity to the sport and persuaded the governing body to introduce tougher qualifying restrictions which ultimately affected female jumpers. The growth in elite women's jumping was evident in the first women's World Cup event of the season in December at Lillehammer, Norway, when 70 women jumpers from 15 countries — the largest start list ever — competed.

Tori Spelling's husband, Dean McDermott, has entered rehab, his publicist, Jill Fritzo, confirmed Thursday.

The 47-year-old actor said he's being treated for "some health and personal issues."

FIFA says Jennifer Lopez will team with rapper Pitbull and Brazilian singer Claudia Leitte to perform the official World Cup song for this year's tournament.

Soccer's governing body made the announcement Thursday but didn't say when "We Are One (Ole Ola)" will be released.

The price of oil edged up Friday for a fifth day in a row on expectations for increased demand.

Benchmark U.S. crude for March delivery was up 22 cents to $97.54 a barrel at 0620 GMT in electronic trading on the U.S. Mercantile Exchange. Oil rose 59 cents to $97.32 on Thursday.

China says it has begun issuing warnings to foreign military planes entering its self-declared air defense zone over the East China Sea that has been blamed for raising tensions in the region.

State media quotes air force spokesman Shen Jinke as saying that multiple types of Chinese planes recently conducted a long-range patrol inside the sweeping zone that was declared in November.

Justin Bieber was a mop-haired heartthrob, clean cut and charming when he debuted five years ago. But a series of troubling incidents have put his innocent image at risk, and none more so than his arrest on drunken-driving charges.

Police say they arrested a bleary-eyed Bieber — smelling of alcohol — after officers saw him drag-racing before dawn Thursday on a palm-lined residential street, his yellow Lamborghini traveling at nearly twice the speed limit.