The man. Easily, especially if he's disciplined & trains.
weave > step through > uppercut to throat > take the back (pause) > apply your choke of choice
This thing running full speed at you .. its a wrap.
This is a MOTORBIKE
Fail sarcasm class, brehs...
Yes they're the smallest of the North American bears (though some can grow to be huge as well), and yes they do their best to avoid humans, but take a look at that paw and lets end all delusions of grandeur of a human beating an adult black bear in hand to hand combat right now.
My answer was the tiger wouldn't even know the guy was supposed to be fighting. It would casually take the guys throat or neck in its jaws and drag him to the netherworld.
Dunking like prime Jordan