(Reuters) - South Korean Chella Choi used a blistering front nine to shoot a five-under-par 67 for a one-stroke lead after Friday's first round of the rain-delayed LPGA Championship at Locust Hill outside Rochester, New York. Choi, seeking her maiden LPGA Tour win, had five birdies on her outward half and offset a birdie at the 10th with a bogey at 13 for a one-shot edge over compatriot Jiyai Shin and American Morgan Pressel at the year's second major. ... More...