France v Germany, Russia v India, Croatia v Ecuador all stand at 2-0 after the first days' play as does Serbia v USA.
Defending champions Spain are currently being held at 1-1 by Switzerland with neither team fielding their top players Rafa Nadal or Roger Federer. Also drawing at 1-all are Sweden and Argentina.
Meanwhile, the Chile v Israel tie has been delayed by a day as the visitors needed extra practice time following the earthquake which hit Chile.