The new event wanted to use singles stars to put mixed doubles on a pedestal. Two masters of the discipline have stolen the show.

Sara Errani stands at the baseline and exhales deeply. She is about to hit a second serve, with Italy up match point against Poland. A place in the Billie Jean King Cup final is at stake. So Errani does what she has done many,

Here's all you need to know about the Collins/Harrison Vs Errani/Vavassori tennis match, to be played at USTA Billie Jean King National Tennis Center, New York