Police say former adult film star Jenna Jameson has been arrested after a report that she attacked someone at a California home.

Newport Beach police Lt. Evan Sailor says the alleged victim put Jameson under citizen's arrest until police arrived Saturday night.

There may be nearly four times as many people infected with the tropical disease dengue globally than was previously believed, according to a new study.

The World Health Organization has estimated there are about 50 million to 100 million cases of dengue, also known as "break-bone fever," every year. But new research puts the number at around 390 million — though about two-thirds of those people have only mild illness and don't need medical attention. The study was published online Sunday in the journal Nature.

The New York Knicks earned their 12th straight win Sunday as Carmelo Anthony had 36 points and 12 rebounds, J.R. Smith hit a pair of shot-clock beaters in the final 2 minutes of a 125-120 victory over the Oklahoma City Thunder.

Smith connected on a 23-foot jump shot from the right wing as the 24-second clock expired to put New York up 117-113 with 1:30 to play, then swished a 3-pointer from beyond the 3-point line with 56.8 seconds left that all but sealed New York's 50th win of the season.

Even an ankle injury couldn't stop world No. 1 Novak Djokovic from dominating Sam Querrey 7-5, 6-7 (4), 6-1, 6-0 to give Serbia an insurmountable 3-1 lead in this Davis Cup quarterfinal at the Taco Bell Arena on Sunday.

At 1-1, 30-40 and a second breakpoint opportunity on Querrey's serve, the world No. 1 twisted his right ankle while playing a forehand and fell to the ground.

Jimmie Johnson pulled away from a restart with eight laps to go to win the NASCAR Sprint Cup Series race at Martinsville Speedway on Sunday.

Johnson led a career-best 346 laps Sunday and pulled away on a restart with eight laps to go for his eighth career victory at Martinsville Speedway on Sunday.

Barcelona hopes to recover Lionel Messi from injury by Wednesday with its Champions League quarterfinal against Paris Saint-Germain poised 2-2, but Cesc Fabregas' first career hat trick over the weekend showed they have a Plan B just in case.

If Messi can't heal a right hamstring he pulled during the last week's first leg in Paris, Barcelona may opt to use Fabregas in the position of "false nine" that has proven to be successful with the Spanish national team.

Manchester United has sold the naming rights to its training ground as part of a sponsorship deal with insurance firm Aon estimated to be worth $230 million, a further sign of the Premier League leader's off-field money-making abilities.

The eight-year agreement with Aon starts in July and includes having the company's logos emblazoned on the training kit at United, which is on course to win a record-extending 20th English title in the coming weeks.

Israel shut a crossing with Gaza after rockets were fired from the Hamas-ruled territory at the Jewish state on the day it commemorated the Holocaust.

The military said it closed the Kerem Shalom terminal Monday. Another crossing would be open for humanitarian cases only, it said.

U.S. Secretary of State John Kerry urged Turkish leaders Sunday to speedily restore full diplomatic relations with Israel, two American allies the U.S. sees as anchors of stability in a Middle East wracked by Syria's civil war, Arab Spring political upheavals and the potential threat posed by Iran's nuclear program.

Turkey, however, demanded that Israel end all "embargoes" against the Palestinians first.

Hackers launched a massive international cyber attack campaign against Israeli government websites on Saturday and Sunday, amid numerous threats from the Anonymous hacker collective.

The global hacker group had promised a mass assault to protest Israeli policy toward the Palestinians. The attack appeared timed to coincide with Israel's annual Holocaust memorial day, beginning at sundown Sunday.