Medvedev was so close to make the biggest comeback but at the end Nadal was too much, what a champion; the russian has a big future, he just need to chill a little.
Next year will have a lot of drama in the battle for the GS and the gold medal, Nadal has a big chance to pass Federer but i can see the swiss will still try to get one more and let's not forget my boy Djokovic who is also a big contender.
Now let's focus in the battle for the no.1, i think Nadal will end as World no.1 since he literally has nothing to defend till the end of the year unlike Djokovic x')