Nancy Lieberman isn't taking any Detroit hate sitting down ... telling TMZ Sports Sophie Cunningham needs to get her facts right after dissing the D earlier this week.
Cunningham -- who joined the Indiana Fever this year -- took a jab at Motor City when she was asked about the WNBA's decision to expand, saying, "I don’t know how excited people are to be going to Detroit."
She didn't sound thrilled about Cleveland and Philadelphia -- the two other cities receiving WNBA teams -- all that much, either.
Lieberman -- who was a player and coach on the Detroit Shock -- was surprised by Cunningham's comment .