No photoshop, the illusion's based on the reflection from the mirror.
I'm calling bullshit pumpster.

First off that mirror is 40 feet from where he is standing. Secondly I've seen him do that pose in person, that's what it looks like, f'ing amazing, even his rear delts look like they blend into his spine. His front delts look like they cross right into his upper pecs.
ironneck, that is a pisspoor attempt.