Serena Williams On U.S. Open Outburst

Serena Williams says her emotions got the best of her when she berated the chair umpire during her loss to Sam Stosur in the U.S. Open final.

"My emotions did get the best of me this past weekend when I disagreed with the umpire," Williams tweeted Wednesday. "It has been a long road to get back to the US Open this year, and I am thankful to have had such a great two weeks in New York."

Williams' tweet came two days after she was cited for a code violation and fined $2,000 for verbally abusing chair umpire Eva Asderaki.

Facing a break point while serving in the first game of the second set Sunday night, Williams hit a forehand that she celebrated with a yell of "Come on!" Asderaki applied the hindrance rule, noting the scream came while Stosur reached out and got a racket on the ball. Asderaki awarded the point to Stosur.

That set Williams off on a series of insults directed at the official, reminiscent of her tirade on the same court when she berated and brandished her racket at a line judge who called a foot fault in the 2009 semifinal against Kim Clijsters.

Stosur stunned Williams 6-2, 6-3 Sunday, winning her first Grand Slam title. She became the first Australian woman to win a major championship since Evonne Goolagong Cawley at Wimbledon in 1980.

Williams won two tournaments heading into the U.S. Open and was considered a favorite despite being sidelined nearly a year with injuries and health issues. She returned in June after dealing with two foot surgeries and blood clots in her lungs.

Spartacus' Star Andy Whitfield Dead

Whitfield died Sunday in Sydney, Australia, 18 months after he was diagnosed with non-Hodgkin lymphoma, manager Sam Maydew told the Associated Press.

"On a beautiful sunny Sydney spring morning, surrounded by his family, in the arms of his loving wife, our beautiful young warrior Andy Whitfield lost his 18 month battle with lymphoma cancer," Whitfield's wife Vashti said in a statement. "He passed peacefully surrounded by love. Thank you to all his fans whose love and support have help carry him to this point. He will be remembered as the inspiring, courageous and gentle man, father and husband he was."

Andy Whitfield – who was born in Wales and moved to Australia in 1999 – was a virtual unknown when he was cast as the legendary Thracian slave in "Spartacus," a role made famous by Kirk Douglas in the 1960 Stanley Kubrick film.

The series proved a breakout hit for the Starz network and made waves with its graphic violence and sexuality.

Whitfield appeared in all 13 episodes of the first season that aired in 2010, and was preparing to shoot the second when he was diagnosed with cancer.

While waiting for Whitfield's treatment and expected recovery, the network produced a six-part prequel, "Spartacus: Gods of the Arena," that aired earlier this year with only a brief voiceover from the actor.

But in January after Whitfield's condition grew worse, the network announced that another Australian actor, Liam McIntyre, would take over the role.

"We are deeply saddened by the loss of our dear friend and colleague, Andy Whitfield," Starz President and CEO Chris Albrecht said in a statement Sunday night. "We were fortunate to have worked with Andy in `Spartacus' and came to know that the man who played a champion on-screen was also a champion in his own life."