Chicago Sky forward Angel Reese drives past Phoenix Mercury forward Alyssa Thomas during Thursday’s game in Phoenix. AP

PHOENIX — Kahleah Copper scored 28 points on her 31st birthday, Natasha Mack had her first career double-double with 10 points and 12 rebounds, and the Phoenix Mercury edged the Chicago Sky 83-79 on Thursday night.

In the last minute, Mack had two offensive rebounds and her career-high fifth block, Alyssa Thomas had two offensive rebounds and a basket and Satou Sabally clinched it with two free throws with six seconds left.

Thomas had 15 points and nine rebounds. Phoenix (24-14), in front of its 15th sellout, won its third straight, fifth of six and moved into a tie for third with six games to play.

The Mercury had 17 steals, led by DeWanna Bonner's five, and 11 bloc

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