By Erin Smith/Chronicle Staff

A diligent Harvard Square restaurant worker tied a tourniquet around his bloody ***** and continued working for several hours after armed robbers stabbed him last week, police said.
The 45-year-old East Boston man told police he was stabbed by two black men in their 20’s outside Z Square restaurant at 14 JFK St. on July 2.
After the 3 a.m. attack, the victim — who noticed he was bleeding from the groin — ran back into the restaurant bathroom and tied a knot around his ***** to stop the bleeding, police said. The victim then continued working until 5 a.m. that morning, police said. The victim finally called an ambulance after he rode the T back to his home in East Boston. A doctor at Boston Medical Center told police the victim suffered a three-inch cut to his *****.
The victim told police he saw the suspects standing in front of Citizens Bank when he stepped outside the restaurant.
One suspect with wavy black hair, who was wearing a black T-shirt and black pants, approached the victim and asked him for a dollar to catch the T, the victim told police. When the victim told the suspect in Spanish he had no money, the suspect grabbed him by the shirt with both hands, according to police reports. The victim told police he shoved the suspect away, but the suspect pulled a white switchblade knife from his pocket and stabbed the victim in the groin. Both suspects then ran away.