Sock, Vandeweghe  to Play in 2018 Hopman Cup 

Team USA members Jack Sock and Coco Vandeweghe will team up for the second consecutive year to represent the U.S. at the 2018 Hopman Cup. 

The Hopman Cup, which will be held in Perth, Australia, from Dec. 30-Jan. 6, is an annual indoor hard-court tennis tournament with eight teams (each composed of one mand and one woman) playing on behalf of their respective countries. 

The eight teams are divided into two groups – Group A and Group B. Each team plays the other three teams in their group, and then the top teams from each group meet in the final. A single tie consists of one men's singles match, one women's singles match and a mixed doubles match.

Team USA is the most decorated nation in the Hopman Cup, boasting six titles over the tournament’s 29-year history. 

Last year at the event, Vandeweghe and Sock, both 25, made an impressive first showing together as a team. The pair, which had never before competed together, dropped only one match in round-robin play, moving on to the final, where the duo fell to France’s Kristina Mladenovic and Richard Gasquet. 

Both Vandeweghe and Sock return to the Hopman Cup after achieving career-high rankings in 2017. 

Vandeweghe is currently ranked a career-high No. 16 in the world after a stirring run at the US Open, where the Californian fell to compatriot Madison Keys in the semifinals. She also reached the semifinals earlier this year at the Australian Open and advanced to the quarterfinals at Wimbledon. 

Nebraska native Sock reached a career-high ranking of No. 14 this past April, after capturing two titles this year, in Auckland and Delray Beach, and reaching his first ATP Masters 1000 semifinal in Indian Wells.