Gallery: Preparing in Prague

The captains have chosen, and Marin Cilic v Frances Tiafoe will be the first of four matches played at the Laver Cup. With the ceremonies now complete, players will focus on winning the trophy for the first time. Meanwhile, over in Tokyo all eyes have been firmly trained on the trophy for a number of days now…

: The tennis world is hoping Roger and Rafa will team up in a Laver Cup doubles match. Photo: Getty Images

: The two teams line up. Photo: Getty Images

: Jack Sock and Nick Kyrgios will team up in the opening doubles match against Tomas Berdych and Rafael Nadal. Photo: Getty Images

: John McEnroe decided to play Tiafoe in the first match of the inaugural competition. Photo: Getty Images

: Rafael Nadal will play in the opening doubles match of the event. Photo: Getty Images

: Frances Tiafoe and Nick Kyrgios chat with the press. Photo: Getty Images

: Denis Shapovalov is one of a number of exciting young stars taking part in the competition. Photo: Getty Images

: The captains name Marin Cilic and Frances Tiafoe as the opening match. Photo: Getty Images

: Tokyo dreaming. Photo: Getty Images

: Caroline Wozniacki had to fight back from 0-3 down in the deciding set to beat Shelby Rogers 4-6 6-1 6-4. Photo: Getty Images

: Barbora Strycova nabbed her first Top 10 win of 2017 with a 7-5 7-6(5) victory over Konta. Photo: Getty Images

: Dominika Cibulkova looked strong as she dismissed Siniakova 6-2 6-2. Photo: Getty Images