LL Cool J came face-to-face with a burglary suspect in his home, and took the guy down with his own hands early this morning … TMZ is reporting. According to law enforcement sources … the suspect entered LL’s Los Angeles area house around 2 a.m., but unfortunately for him the actor/rapper/badass was home. We’re told LL heard some commotion downstairs, went to check it out … and found the intruder. Sources say the intruder had tripped LL’s alarm system, but the “NCIS Los Angeles“ star — who is a physical beast — decided to go hand-to-hand combat on the dude … and managed to detain him until LAPD arrived a few minutes later to make the arrest. We’re told LL is okay, but the suspect — who will be booked for burglary — suffered a few bruises. Mama said knock you out.