Williams sisters look ahead to 2016 Olympics

• Venus Williams and Serena Williams say they are looking to the 2016 Olympics
• The sisters won the doubles gold in London this year, and Serena won singles gold
• Serena: "It's our main goal. We were talking ... about how we can't wait to get to Rio"

LAGOS, Nigeria (AP) — Only a few months after winning their third Olympic doubles gold medal, Serena and Venus Williams say they are eagerly awaiting the 2016 Rio Games.

Serena says "it's our main goal. We were talking ... about how we can't wait to get to Rio. And obviously, bearing that we're both healthy, that's our goal to be there."

Venus Williams says "that's what we've begun preparing for."

Last week, Serena beat Victoria Azarenka 6-4, 6-4 to win the WTA Championships final in Istanbul.

Venus and Serena have teamed to win 13 Grand Slam doubles titles and won Olympic gold in doubles in 2000, 2008 and 2012.

The sisters, accompanied by their mother Oracene Price, are in Nigeria's largest city for the week as part of a promotional tour culminating with an exhibition match between them on Friday.

On their first visit to Nigeria, the sisters were ready to inspire local kids to set their goals high.

"We were really able to break the mold and win a lot of Grand Slams and a lot of tournaments and not only that, but kind of change the face of tennis," Serena said Wednesday.

"We were able to break the mold in a sport that was really dominated by white people and to have a face of color that could come in and do the same and dominate, (it lets) people know that it doesn't matter what your background is and where you come from. If you have dreams, if you have goals, that's all that really matters."

After a news conference in which a journalist suggested they actually came from Nigeria, the sisters swatted tennis balls with local children at an exclusive private club on Ikoyi Island, home to diplomats and many of the nation's wealthy.