Ryan Garcia had an unwelcome guest Thursday night -- TMZ Sports is told an alleged burglar hopped a fence and tried to enter his home ... before scurrying away as cops responded to the scene.
Law enforcement sources tell us the incident went down around 9:35 PM, with officers receiving a call for an attempted burglary at the boxing superstar's residence in L.A.
By the time cops got to the home, the suspect was gone .