[@Afro Samurai] The face claim doesn't matter. You can even use a cute furry dog if you give me a compelling reason to have a super powered dog and not a human. 

The thing is : You either lower his durability and keep the strength or remove most of his strength (keeping only something like...a max weight of 150 (basically a very strong human but not surpassing the human limit) and make him extra durable.