The 64-year-old Hollywood star has never been afraid to perform death-defying stunts in his blockbusters, because taking health risks has always paid off.
He tells U.S. magazine Maxim, "It's a good omen. Every film I've done where I got injured has turned out great. Rocky II was 60 stitches; Rocky III was a concussion; the last Rambo was a bruised artery. Ones where I come out unscathed? Disasters."
But Stallone recently admitted he will have to let go of his superstition and stop doing stunt work, after seriously injuring his shoulder and back in a fight sequence with wrestler Steve Austin on the set of his new film The Expendables.
His doctor has told him he will risk spending the rest of his life in a wheelchair if he continues with his daredevil antics.
Stallone told Cigar Aficionado magazine, "I couldn't do this again. This is it, there's nothing left. I have had four operations since the film. The doctor says that if I hurt my neck again, that's it - paralysis or worse. I don't want to hear that but it's a fact."