The injury was reported at 4:03 a.m. in the 400 block of Turk Street. The 60-year-old victim told police he woke up to find he had been stabbed in the chest.
The man was taken to San Francisco General Hospital to be treated for his wounds, which also included cuts to his arm and stomach, according to police. He is expected to survive.
No suspect information was available this morning. Anyone with information about the case is asked to call the Police Department's anonymous tip line at (415) 575-4444 or send a tip by text message to TIP411.
