The stabbing was reported at about 9:50 p.m. near the intersection of 16th and Mission streets, according to police.
The victim, a 44-year-old man, got into an argument on the street with four males he did not know, police officer Albie Esparza said.
During the argument, one pulled out a knife and stabbed him, police said.
The victim suffered minor cuts to his face and head, and was taken to San Francisco General Hospital, according to police.
The suspects all fled on foot and had not been arrested as of this morning.
Dan McMenamin, Bay City News