Hye-Jin Choi has shot a five-under 66 to join fellow South Korean rookie Narin An atop the leaderboard in the LPGA Tour's Canadian Pacific Women's Open.

Choi matched second-round leader An at 16-under 197 at Ottawa Hunt and Golf Club in Saturday's third round. An had a 68.

In July in Michigan, An and Choi teamed to finish sixth in the Dow Great Lakes Bay Invitational.

First-round leader Paula Reto of South Africa was a stroke back after a 67.

Third-ranked Nelly Korda (68) and Sarah Schmelzel (66) were 14 under. Korda is coming off her first victory of the year in the Aramco Series on the Ladies European Tour, where she rallied from seven shots back against sister Jessica.

Hannah Green was the leading Australian, tied 20th at eight under after a 71.

Maddie Szeryk was the top Canadian, shooting a 69 to get to nine under.

Canadian star Brooke Henderson, the 2018 winner at Wascana in Regina, Saskatchewan, was tied for 60th at three under after a 73.