ROSEMONT, Ill. -- Nneka Ogwumike had 20 points and 11 rebounds, Candace Parker added 11 points, seven rebounds and nine assists, and the Los Angeles Sparks beat the Chicago Sky 77-67 on Wednesday.

Ogwumike was 10 of 11 from the field for her fifth consecutive game with at least 20 points. She also had four blocks as the Sparks tied a season high with eight.

Kristi Toliver had 13 points, Jantel Lavender added 12 points and Essence Carson scored 10 for Los Angeles (19-1), the top-ranked team in the AP power poll. The Sparks had 28 assists on 33 field goals.

Los Angeles led 68-53 until Allie Quigley's 3-pointer started a 13-4 Chicago run to pull to 72-66 with 2:17 left. But the Sky missed shots on their next two possessions and Toliver made two free throws with 51 seconds left for an eight-point lead.

Elena Delle Donne scored 15 points and Quigley added 13 for sixth-ranked Chicago (8-12). Cheyenne Parker made 5 of 7 shots and scored a career-high 10 points.