Nick Kyrgios has sparked major doubts over his participation in the Australian Open after withdrawing from another tournament down under.
The controversial star hit the headlines last week when he pulled out of the United Cup at the 11th hour, prompting a war of words with Aussie co-captain Lleyton Hewitt. The 27-year-old accused Hewitt of "throwing me under a bus" after the captain spoke of his frustration over the development minutes before the pre-tournament press conference.
Kyrgios, a Wimbledon finalist last year, claimed he had picked up an ankle injury in training the day before the team event began. But he had still been due to compete in the Adelaide International 2 event that starts this coming Saturday, January 10.
