Sania Mirza crashed out of the Pan Pacific Open with a first-round defeat in a marathon three setter against Chinese Jie Zheng in Tokyo today. Sania, who had to qualify for the USD two million hard-court event, went down 7-5 2-6 3-6 after a contest lasting more than two hours. She broke her rival thrice to go 1-0 up. However, Sania ran out of steam thereafter and lost her serve four times to go down 2-6 in the second set. The third set followed a similar script and the Indian was once again outplayed with her serve being a major let-down.