When he saw 90-year-old lady being knocked to the ground outside a convenience store by an mugger who ran away, Robb Revelli sprang into action.
Revelli, 36, helped the woman grab her credit cards that fell during the attack, then asked if she wanted to go to the hospital or chase the attacker.
"If she was down, I was down to go get him," he said, "and we did."
The pair caught up to the attacker, 27-year-old Damarea Johnson.
"[I] caught up to him and put him in a headlock, and he started throwing money," Revelli (pictured), a former rugby player, told the Oakland Tribune.
"He kept fighting the whole time. I had scratches on my face."
As Revelli held the man down, the woman called 911 to report the crime and to praise her good Samaritan rescuer. "He's an excellent, wonderful fellow," the woman, who has asked that her identity not be released, told police on the call.
"I hope God protects him and blesses him for the rest of his life."