Liz Cambage has a message for WNBA players -- if they really wanna make a buck, they're gonna have to find it outside of their salaries ... 'cause she sure as hell didn't buy her mink coat and blinged-out teeth with a game check!!
The former Los Angeles Sparks star turned to OnlyFans after leaving the W ... and it wasn't long before she made more dough on the subscription-based platform than she did on the court.

She reportedly made more than a million bucks in no time.