Polar Bear vs. Rhino Deathmatch

I'm gonna have to go with the Polar Bear on this one. The Rhino's only chance would be to knock the polar bear down and then get far enough away to take a run at the bear with his rhino horn. Not bloody likely. I say a polar bear could take a rhino out in less than 10 minutes. As most of us know, polar bears are grapplers, so I see the bear getting in tight on the rhino and just going to work with those sharp claws and teeth. Not sure if rhino's even have sharp teeth. In fact the more I think about it, rhinos are pretty overrated. Polar bears on the other hand are ferocious.