Aust v USA Davis Cup

AUSTRALIA V UNITED STATES DAVIS CUP WORLD GROUP FIRST ROUND

DAY ONE

Singles head to head (prefix denotes ranking)

77-Sam Groth (Aus) v 11-John Isner (USA) - first meeting

20-Bernard Tomic (Aus) v 23-Jack Sock (USA) - Sock leads 2-0

OVERALL HEAD-TO-HEAD

Played 45, USA 25, Australia 20

Rankings: Australia 8th, USA 11th.