In front of some of the players he has molded into one of the greatest football teams of all time, Barcelona coach Pep Guardiola stepped down on Friday, bringing to a close a four-year reign of unprecedented success.

Guardiola announced he will leave the club at the end of the season, explaining at a news conference held at the Camp Nou stadium that the demands of the job were too high and his energy levels too low to continue.

Yemeni local officials said Friday that attackers have blown up a gas pipeline in the south, stopping the country's export of gas.

The officials said the attack is the second in less than a month in the southern province of Shabwa. It was not clear who was responsible.

Three men have been arrested in the Danish capital on suspicion of plotting a terror act after police found them in possession of automatic firearms and ammunition, Denmark's intelligence service said Friday.

The Security and Intelligence Service, or PET, said the men were arrested in two separate locations in Copenhagen in connection with an ongoing terror investigation.

Twin explosions ripped through a crowded cafe northeast of Baghdad, killing nine people and wounding 21, Iraqi officials said Friday.

The attack late Thursday in the village of Garma, near the city of Baqouba in Diyala province, came a week after a series of blasts killed dozens in the capital and across the country.

The Chicago Bulls will open the postseason Saturday against Philadelphia, just before Miami and New York renew their playoff rivalry.

Oklahoma City hosts defending NBA champion Dallas later Saturday, while Indiana faces Orlando in the early Saturday night game.

Michael Jordan's No. 23 has long been synonymous with greatness. Now that number has a completely different meaning for him.

As Jordan watched from his luxury box, his Charlotte Bobcats lost their 23rd consecutive game Thursday night 104-84 to the New York Knicks and finished the shrunken season with the worst winning percentage in NBA history (.106). That means the man recognized globally as the greatest basketball player ever is the not-so-proud owner of the worst NBA team ever.

Steve Wohlen lay on his front lawn, blue, unconscious and barely breathing, overdosing on heroin.

His mother ran outside, frantically assembling a pen-like canister. Her heart pounding, she dropped to her knees and used the device to deliver two squirts up her son's nostrils.

A cancer diagnosis often inspires people to exercise and eat healthier. Now the experts say there's strong evidence that both habits may help prevent the disease from coming back.

New guidelines issued Thursday by the American Cancer Society urge doctors to talk to their cancer patients about eating right, exercising and slimming down if they're too heavy.

LinkedIn users can now access the professional social network on their iPad with an application launched Thursday.

The free app is available through Apple Inc.'s iTunes store. LinkedIn says the app helps today's increasingly mobile professionals who aren't always tethered to a desktop.

Han Zhongping, a 38-year-old coal mine owner who has four luxury cars and is in the market for another, looked at BMW's latest sedans at this week's Beijing auto show and said what he wants is simple.

"The most expensive is the best," said Han, from the northwestern town of Yulin in China's coal fields. His stable of cars already includes models from BMW and Mercedes-Benz, all bought for cash.