Yani Tseng, playing for the first time since losing the No. 1 ranking to Lewis in Phoenix, also opened with a 72. The 2010 winner at Mission Hills, Tseng was booted out of the Kia Classic two weeks ago when she overslept and missed her pro-am tee time.
‘‘Today it seemed like I was trying too hard,’’ said Tseng, winless in more than a year. ‘‘There’s three more days to come and I know I can shoot a low score.’’