One of the most massive wrestlers has a very strange separation in his chest.

Wrestler Scott Steiner’s chest is becoming more and more abnormal. This has been the case with other wrestlers as well. But what is the real reason for this? Could it be nerve damage or years of certain wrestling training techniques gone wrong? The video above from YouTuber Wrestlelamia breaks down various wrestlers who eventually developed physical abnormalities – including Scott Steiner. The video also explores different rumors that could cause this “chest gap” – which has grown over time to be called Steinerism.

Whatever the case, it’s certainly concerning and frightening to see.