Former world number one Victoria Azarenka will miss the US Open because of an ongoing family situation. The Belarusian only returned to tennis in June after giving birth to her son, Leo, in December. 28 year old separated from his father in July and last week she issued a statement saying she could only play in the tournament if she leaves her son Leo behind. As a replacement, Misa Eguchi, of Japan, moves into the main draw for the tournament, which starts on 28 August. Earlier this month Azarenka pulled out of the Cincinnati Open because of a family matter. The Australian Open champion in 2012 and 2013 reached the final in New York in the same two years. She was knocked out in the fourth round at Wimbledon this year.