Nick Kyrgios pulls out of Australian Open with injured knee

MELBOURNE, Australia (AP) — Nick Kyrgios has pulled out of the Australian Open a day before he was scheduled to play his first-round match. He has a knee injury. Kyrgios was the runner-up at Wimbledon last year in singles and the men’s doubles champion at the Australian Open and considered the host country’s strongest chance to win a title at Melbourne Park this year. Kyrgios announced his withdrawal on Day 1 of action at the year’s first Grand Slam tournament.