Five-time major-winner Phil Mickelson was enjoying the challenge of the high-altitude Chapultepec Golf Club Thursday as he seized a share of the first-round lead in the WGC-Mexico Championship.

US swimming legend Michael Phelps has spoken of his frustration at the possibility rivals were using drugs at last year's Rio de Janeiro Olympics.

Top-seeded Canadian Milos Raonic held off Juan Martin del Potro 6-3, 7-6 (8/6) on Saturday to book a title clash with Jack Sock at the ATP Delray Beach Open.

Dustin Johnson made the complicated world golf ranking calculations simple on Sunday, vaulting to number one with a convincing victory in the Genesis Open.

Muhammad Ali's fight gloves and a box of cigars signed by the Cuban revolutionary leader Fidel Castro are among some of the highlights in an auction of memorabilia steeped in sporting history.

Bruce Arena was rehired Tuesday for a second stint as United States head coach, replacing sacked German Jurgen Klinsmann.

Former German international striker Jurgen Klinsmann was fired Monday as coach of the United States after losing two straight 2018 World Cup qualifying matches.

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.

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.

Skipper Rafael Marquez scored an 89th minute winner as Mexico stunned the United States 2-1 in a thrilling World Cup qualifying duel between the arch-rivals here Friday.

Batsman Phillip Hughes died after he was struck on the neck by a bouncer during an Australian domestic match in 2014, stunning the sporting world.

Computer hackers who leaked the medical records of more than 100 top athletes in a bid to reveal questionable drug exemptions may have tampered with the data, according to the World Anti-Doping Agency (WADA).

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.

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.

American swimmer Ryan Lochte has been suspended for 10 months, US media reported on Wednesday, following a scandal

Striker Jozy Altidore scores twice as the United States thrash Trinidad and Tobago 4-0 to book their place in the final round of the CONCACAF region's 2018 World Cup qualifiers.

Borussia Dortmund teenager Christian Pulisic scores twice as the United States thrashed Saint Vincent and the Grenadines 6-0.

World number one Serena Williams opens her U.S. Open account with a tidy 6-3 6-3 win over Ekaterina Makarova.

The Brazilian authorities have charged US swimming star Ryan Lochte with making a false statement about being robbed at gunpoint during the Olympics.