Calum von Moger suffers muscle atrophy that has transformed his leg.

Ever since suffering multiple injuries during a cliff repelling accident, Calum von Moger has been on the sidelines, forced to watch all his hard work reduced to nothing. While he has retained a great deal of his muscle mass since his knee and bicep injury, Calum has also suffered some major atrophy that have eaten away at his gains.

The most recent video posted to Calum von Moger’s YouTube page shows exactly how much muscle he’s lost since going under the knife. Take a look at the video to see the alarming difference in Calum von Moger’s physique.

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