Together, they were considered one of the best doubles teams in the world.
However, it was only in the 2010 season that the pair broke into the top 10 doubles teams.
There is no United States doubles team to speak of.
Canada has qualified so far three singles players, and two doubles team.
Since 2003 there have been eight singles players divided into two groups, and four doubles teams.
The men's singles sliders start from a higher point than the women and doubles teams.
In 2002, she and Serena became the first siblings to rank no. 1 doubles team.
Each game is a round-robin of eight singles players or doubles teams.
Last year, she played on the No. 1 college doubles team and was named an all-American.
However, Malaysia eventually lost 2-3 due to the defeat of its first doubles team in the vital final match.