Contractors likely breached security and handed over documents describing the Central Intelligence Agency's use of hacking tools to anti-secrecy group WikiLeaks, US intelligence and law enforcement officials say.

Chinese telecom equipment maker ZTE Corp has agreed to plead guilty and pay nearly $900 million in a US sanctions case.

Former US Open champ Juan Martin Del Potro got his season off to another successful start at the Delray Beach Open, defeating Kevin Anderson in straight sets and overcoming an opening set tumble in the process.

Serena Williams suffered a shock second-round defeat at the Auckland Classic Wednesday following her sister Venus's earlier withdrawal with an arm injury.

Phil Mickelson faces an indefinite period on the sidelines after undergoing a second hernia operation in the space of two months, his management company has confirmed.

Members of the reigning Women's World Cup champion United States national team vow to push their case for equal pay to the US men's team as far as it takes.

Striker Robbie Keane will leave LA Galaxy after his contract expires in December, the Major League Soccer (MLS) club have announced.

A Brazilian judge ruled that Irish Olympic Committee (IOC) president Patrick Hickey, awaiting trial over an alleged ticketing scam, could be released on bail and leave the country.

The United States face an uphill battle to qualify for their eighth consecutive World Cup Finals after being demolished 4-0 by a rampant Costa Rica in San Jose.

The president of the Philippines wants to liberate his country from a "shackling dependency" on the United States which cannot guarantee its help when Philippine sovereignty is under threat, its foreign minister says.

World football body FIFA bans a senior Qatari official from running in elections for a seat on its new-look council over an investigation.

Arnold Palmer, the golf great whose charisma and common touch drew a legion of fans known as "Arnie's Army" and propelled the game into the mainstream, dies at the age of 87.

Veteran sprinter Tyson Gay is making a bid to force his way onto the US bobsled team after entering this week's National Push Championships in Canada.

Intel Corp raises its quarterly revenue forecast for the first time in more than two years as suppliers of parts used in personal computers replenish their inventory amid improving PC demand.

Dwarfs at the Rio Paralympics are getting the big stage they say they deserve.

The World Anti-Doping Agency (WADA) says that another batch of athlete data has been leaked by the same Russian cyber espionage group that published confidential medical data earlier this week.

A fantastic year: 2 Grand Slams, Olympic silver medallist, new World No. 1! Congrats, @AngeliqueKerber #USOpen

Republican presidential nominee Donald Trump’s US military buildup plan would cost hundreds of billions of dollars - but with no apparent strategy, defense experts from across the political spectrum say.

Reaching top of the world seems to agree with Angelique Kerber, who celebrates her ascension to the number one ranking with a 6-4 6-3 win over Caroline Wozniacki to advance to the U.S. Open final.

Serena Williams crashes out of the US Open, her semi-final defeat to Karolina Pliskova costing her a shot at a 23rd Grand Slam title.