This cavity is caused by degradation of muscle tissues. When Steiner returned to WWE in 2002, his pectoral muscles had already begun to separate, but what really worsened the wear-and-tear was the injury he sustained in 2007.

The sheer severity of the degree of atrophy in Scott Steiner’s pectorals is extremely concerning especially when you consider the fact that the physical changes to his torso are a direct result of nerve damage that he incurred after complications in his neck surgery.