Ha Na Jang holds a two-shot lead after two rounds of the CME Group Tour Championship in Florida.
The South Korean carded a second-round seven under par score of 65, which gives her the edge over world number one New Zealand's Lydia Ko. United States pair Cristie Kerr and Jennifer Song are a further shot back in Naples.
Last year Ko trailed by five shots entering the weekend in this event - then had back-to-back 68s to get into a play-off, which she won.
Source: PA
