Ice-cool Ko aims to have fun at Mission Hills

Mar 19, 2015; PHOENIX, AZ, USA; Lydia Ko tees off on the 11th hole during round one action of the JTBC Founders Cup at Wildfire Golf Club at JW Marriott Phoenix Desert Ridge Resort & Spa. Mandatory Credit: Rob Schumacher-USA TODAY

RANCHO MIRAGE, California (Reuters) - New Zealand's Lydia Ko has been exposed to increased expectation and much bigger crowds since becoming world number one but, so far, the 17-year-old is handling it all with remarkable poise.

This week, the South Korea-born golfing prodigy heads into the first women's major of the season with a chance to break Annika Sorenstam's run of 29 consecutive rounds under par on the LPGA Tour.