Kei Nishikori, glad to be back on the New York hard courts where he became Asia's first men's Grand Slam finalist, reaches the second round of US Open.

Novak Djokovic and Rafael Nadal get their US Open campaigns under way Monday in the shadow of Arthur Ashe Stadium's spectacular $150 million retractable roof and alongside rock music legend Phil Collins.

More than half the people outside the government who met with Hillary Clinton while she was secretary of state are found to have given money — either personally or through companies or groups — to the Clinton Foundation.

US federal judge rules that Democrat Hillary Clinton must respond in writing in a lawsuit over her use of a private e-mail server while she was secretary of state.

The famed Los Angeles Playboy mansion belonging to Hugh Hefner, founder of the Playboy empire, has been sold for $100 million, and Hefner, 90, will live in the mansion for the rest of his life, a representative for the buyer says.

Bangladesh condemns the killing of Bangladesh-origin Imam and his associate in New York city describing it as a cowardly act on peace-loving people.

Two Bangladeshi nationals including a Muslim cleric are shot dead by a gunman in New York. A lone gunman shot them when they were walking together following afternoon prayers at a mosque in the New York City borough of Queens.

US health authorities on Friday declare a public health emergency in Puerto Rico due to the outbreak of Zika, which has now infected more than 10,000 people.

Michael Phelps of the United States wins the Olympic 200 metres individual medley to capture the 22nd gold medal of his career and becomes the first swimmer to win the same event at four consecutive Games.

Serena Williams' hopes of a fifth Olympic gold medal are crushed by Ukraine's Elina Svitolina as the battle for the women's title in Rio is blown wide open.

The United States and Brazil advance to the quarter-finals of the Olympic women's soccer tournament as group winners despite being held to disappointing draws in their final pool matches on Tuesday.

In an unforgettable display of Olympic power Michael Phelps wins two more finals to take his historic all-time record load to 21 golds and entrench his legendary status.

American teenager Lilly King celebrates stopping tainted Russian swimmer Yulia Efimova from getting an Olympic gold as doping hostilities worsen in Rio.

Michael Phelps makes all the difference as he wins the 19th Olympic gold medal of his astonishing career and helps the U.S. men's team to victory in the 4x100 meters freestyle relay.

An Iranian nuclear scientist detained since 2010 has been executed, his family has told the BBC.

Sasha Obama, daughter of US President Barack Obama, has swapped the comforts of the White House for the counter of a seafood restaurant, US media report.

Three different ways of designing a vaccine have been shown to be completely protective against the Zika virus.

It would be easy for the US team of NBA stars to overlook China in Saturday's opening game of the Rio Olympics after routing the Asians twice in pre-Games exhibitions.

Alex Oxlade-Chamberlain scores a second half goal on a brilliant solo effort as English giants Arsenal earn their second win of their US tour by defeating Chivas Guadalajara 3-1.

One person is killed and four others are wounded in a shooting in Austin, Texas. Police warn that the shooter is still at large.