WNBA Superstar Chamique Holdsclaw -- Allegedly FIRES GUN in Spat with Ex-GF

WNBA legend Chamique Holdsclaw -- one of the greatest female basketball players of all time -- is a wanted woman in Georgia ... after allegedly FIRING A GUN during an explosive altercation with her ex-girlfriend.

According to the Atlanta Police Dept., a warrant has been issued for Holdsclaw's arrest over an incident that occurred just after noon on November 13.

Holdsclaw's ex-GF Jennifer Lacy -- who's also a WNBA player -- told police ... the drama began when she noticed Holdsclaw following her after she finished a workout at a local church.

According to the police report, obtained by TMZ, Lacy felt scared ... and called a friend who agreed to meet her at a nearby location.

Once Lacy arrived, she claims Holdsclaw got out of her car ... and approached Lacy's car while carrying a baseball bat.

Lacy told cops ... Holdsclaw began bashing in her car windows ... before pulling out a pistol, sticking the gun INSIDE THE CAR and firing a shot ... while Lacy was still in the vehicle.

After firing the shot, Holdsclaw allegedly fled the scene. When cops arrived, officers say they recovered a 9mm shell casing.