`` Venus is the toughest opponent Williams sisters will meet in the semifinals of Family Circle Cup in Charleston . Americans will play each other for the first time since 2009 WTA finals . Sam Querrey brings U.S. level at 1-1 with Serbia in Davis Cup quarterfinal . TL;DR Serena and Venus Williams are set to face off against each other on Saturday.
Williams sisters will meet in the semifinals of Family Circle Cup in Charleston . Americans will play each other for the first time since 2009 WTA finals . Sam Querrey brings U.S. level at 1-1 with Serbia in Davis Cup quarterfinal . TL;DR Serena and Venus Williams are set to face off against each other on Saturday.