By Ben Everill LA JOLLA, California (Reuters) - South Korean veteran K.J. Choi moved within sight of his ninth PGA Tour victory when he earned a share of the lead with American Scott Brown after the third round at the Farmers Insurance Open on Saturday. Choi birdied the par-five 18th to shoot even-par 72 and join Brown (70) at nine-under-207, one shot ahead of Jimmy Walker and Gary Woodland at Torrey Pines in southern California. Choi, winless on the PGA Tour since 2011, was delighted to give himself a chance of ending his drought. More...