Thanasi Kokkinakis Pictures

  • PRAGUE, CZECH REPUBLIC - SEPTEMBER 20: Sam Querrey of United States, Nick Kyrgios of Australia, Thanasi Kokkinakis of Australia, Denis Shapovalov of Canada, John McEnroe of United States, Frances Tiafoe of United States, Jack Sock of United States and John Isner of United States pose for photos during a photoshoot ahead of the Laver Cup on September 20, 2017 in Prague, Czech Republic. The Laver Cup consists of six European players competing against their counterparts from the rest of the World. Europe will be captained by Bjorn Borg and John McEnroe will captain the Rest of the World team. The event runs from 22-24 September. (Photo by Julian Finney/Getty Images for Laver Cup)