MELBOURNE, Australia — Venus Williams has withdrawn from the Australian Open for an undisclosed injury she sustained while playing in a tournament in Auckland, New Zealand this week. A seven-time Grand Slam singles champion, Williams received a wild-card entry into the Australian Open last month to compete in what would have been her 22nd major at Melbourne Park. But the Australian Open said on Saturday the 42-year-old Williams had withdrawn from the tournament beginning Jan. 16.