Chuck Liddell was arrested early Monday morning for domestic violence ... and the UFC legend is currently sitting in a Los Angeles jail cell.
TMZ Sports has learned the L.A. Sherriff's Department received a call about a fight at a Liddell's San Fernando Valley home. When cops arrived, they investigated ... and determined the 51-year-old former fighter was involved in a verbal argument that turned physical.
We're told the alleged victim is Liddell's wife. She did not require medical attention.
Chuck was taken to jail .