Mike Tyson, one of the most feared heavyweight champs of all time, showed his compassionate side when he stopped to help an injured motorcyclist in Las Vegas last week.

The Las Vegas Sun reports that 29-year-old Ryan Chesley was traveling along Interstate 15 when he was cut off by a taxi driver. Chesley's bike went out of control and crashed, leaving him with broken bones and torn ligaments.

Tyson witnessed the crash and rushed to the victim's side until help arrived, waving off bystanders.

"He thought he was hallucinating," Chesley's lawyer Stephen Stubbs said. "He thought he was in some other world."

Chesley later posted a thank-you letter to Tyson on Facebook which read, "Dear Iron Mike, "Thank you so much for looking over me after my accident. It has to be the most re-assuring thing in the world to have Mike Tyson telling people not to touch me. I can never thank you enough."

Chesley also sent a basket of fruits and pistachio nuts. He has since been released from the hospital but will require surgery.