Sylvia Fowles had 24 points and a career-high 22 rebounds, Elena Delle Donne scored 20 points, and the Chicago Sky beat the Connecticut Sun 86-75 on Friday night.
Epiphanny Prince added 17 points for the Sky (2-0), who trailed only briefly in their home opener.
Allison Hightower matched a career-high with 20 points, reigning league MVP Tina Charles had 16 points and 15 rebounds, and Kara Lawson added 11 points for the Sun (1-1).
Fowles' 20-20 game was the 13th in WNBA history and first since Los Angeles' Nneka Ogwumike had 22 points and 20 rebounds last July 12.
Fowles finished two rebounds short of the record set by Chamique Holdsclaw in 2003.