Sam Groth (front) and John Peers of Australia compete in the men's doubles match against Jiri Vesely and Jan Satral of Czech Republic at Davis Cup World Group first round match at Kooyong Lawn Tennis Club in Melbourne, Australia, Feb. 4, 2017. Sam Groth and John Peers won 3-0. Australia leads by 3-0. (Xinhua/Bai Xue)
