Nick Kyrgios’s late withdrawal from the inaugural edition of the United Cup took his own team mates by surprise on Wednesday as they were left in the dark until minutes before their pre-tournament news conference. Kyrgios, who is ranked 22nd in the world and reached this year’s Wimbledon final, was set to lead Australia in the joint ATP and WTA event, which is being held in Sydney, Brisbane and Perth and offers ranking points and $15 million in prize-money.
