奥运第8天:菲尔普斯最后一战金牌收官 共获4枚金牌2枚银牌 - August 05, 2012

American tennis-playing sisters Serena and Venus Williams team up Sunday for the women's doubles gold medal. Serena won the singles gold medal Saturday.

Also Saturday, American swimmer Michael Phelps ended his career with another gold medal, ending his dominance over three Olympics with 18 gold medals and 22 medallions overall.

The millionaire NBA players from the U.S. barely won their qualifying match against tough Lithuania Saturday with a score of 99-94.