Complete strangers did everything they possibly could to try to save Pernell "Sweet Pea" Whitaker's life after the ex-boxing champ was struck by a car ... and the frantic scene was all caught on 911 audio.
The 55-year-old was tragically hit by a vehicle while he was crossing a busy street in Virginia Beach on July 14 ... and in 911 recording of the incident, obtained by TMZ Sports, you can hear a woman rallying pedestrians to try to help Whitaker.
The woman says she didn't know Whitaker -- but saw he desperately needed help and vowed to do everything in her power to try and save him.