Is Kachanov good enough to do the job?
I think it depends on how Nadal's playing. If he's doing his usual passive defender hitting everything 10 feet behind the baseline? Then yeah, I think the kid can take him out. He's got a big game even if he isn't the greatest mover. Plus, he probably learned a lot from his Halle Match against Roger - and Nadal is nowhere near as aggressive - especially coming forward as Roger is. If he can play attacking tennis and keep the points short - I give him a decent shot of beating Nadal. Conversely...he's young and inexperienced. Nerves could do him in.