Jared Palmer and Eric Butorac among former tennis pros entered.
Former No. 1 shares video of her playing tennis with the late Lakers star.
World No. 1 pays tribute to retiring Maria Sharapova.
TennisOne has been named official mobile app for World TeamTennis.
Elena Rybakina withdraws with an abductor injury.
Novak Djokovic and a belly dancer do dance of danger.
Plain White T's Tom Higgenson will perform.
