"We've got to learn to fight through the final five minutes," said Zellous. "Maybe a little bit of that is fatigue, but I don't even want to use that as an excuse. We just don't have the numbers right now, but we're getting closer and closer to getting that next win."
The Sky had two starters play more than 30 minutes while the Fever had four.
"Everybody was ready and fully energized," said Fever guard Briann January, who scored eight points and had three assists. "We just have to learn from every experience. We are making progress to get better."
Chicago, the stronger and more accomplished offensively team inside, dominated the paint. The Sky scored 32 points there compared to 16 for the Fever. Chicago also won the rebound battle 41-26. Swin Cash grabbed eight boards for the Sky, and Jessica Breland had seven for the Fever.
"It's nice to pull out a grinding win," said Chicago coach Pokey Chatman. "We held them to 24 points in the second half. We rebounded the ball and were able to run."
Indiana (1-6) plays at Atlanta on Tuesday. Chicago is now 5-3 on the season.