Both Venus and Serena are scheduled to play their first matches next week for World Team Tennis (WTT). 

Developed by Billie Jean King, WTT is a co-ed event that unites pros in a team/league format.  Venus and Serena will be playing for the Washington Kastles.  For more information visit the WTT official website by clicking here.

Venus is scheduled to play in two WTT matches this season (July 5 and July 6).  Her match on July 5 will air in the United States live on Tennis Channel at 7pm EST / 4pm PST.

Serena is scheduled to play four WTT matches this season (July 7, 9, 19, and 20).  I'm not sure at this point when or which of Serena's matches will air, but as soon as known, that information will be posted here.