Sylvester Stallone reveals nine back surgeries and three neck fusions from doing his own stunts, calling himself an "idiot" for the decades of damage.
https://www.foxnews.com/entertainment/sylvester-stallone-calls-himself-idiot-doing-his-own-stunts-details-nine-back-surgeries
https://www.foxnews.com/entertainment/sylvester-stallone-calls-himself-idiot-doing-his-own-stunts-details-nine-back-surgeries