How would a german shepherd fair against a wolf?

 
How would a german shepherd fair against a wolf?
1 vs 1 battle.

I expect a wolf to win but I have heard of golden retrievers fighting a cougar to protect there owners and survive. So since German shepherds are stronger than retrievers how would they fair against a wolf?
answer:
Not very well..!
well first off the GR was protecting her territory and sell not her owner. The only reason the dog lived is was like most predators the cougar decided to go for easier prey.

At the end of the day unless one turns tail and runs the wild predator will have the advantage over the domestic dog.
The wolf wouldn't waste its energy attacking in such a situation unless it was starving and had a den full of pups to feed or protect, and the GSD would need to be the dumbest GSD on the planet to antagonise a wild wolf.
Depends on the physical condition and age of the gsd and wolf. Many types of dog breeds were breed to kill wolves, so it would not be a surprise if the gsd won. I would not underestimate a wolf though.
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Have you seen two alpha males fighting?
Depends on the GSD and on the wolf....