BEIJING -- Serena Williams loves to show off the Olympic gold medal she won in 2000. She and her sister may soon have another one to brag about.
The Williamses advanced Saturday to the doubles final by beating another sibling pair, Ukraine's Alona and Kateryna Bondarenko, 4-6, 6-4, 6-1.
Venus and Serena improved to 9-0 lifetime in Olympic doubles. They didn't play doubles in Athens four years ago because Serena was hurt, but they won a gold medal in Sydney.
"Hopefully I'll be able to show people a new one," Serena said.
Both lost in the quarterfinals of singles, but they're assured of at least a silver medal in doubles.
"Obviously we would have loved to have brought home more medals for the U.S.," Venus said. "We did the best we could. We're not asking for more at this point. Next time we'll ask for a little more."
And there will be a next time, the sisters said. Both plan to play at the London Olympics in 2012.
"I'll be in London," Serena said.
"I definitely will be in London," Venus said."You know, we'll still be pretty young."
Venus will be 32 and Serena 30 in four years.
