being 6 foot 6 helps. del potro has enormous easy power off the ground with that size.
he has also improved his serve so he is very difficult to deal with. poor guy is still without a single masters series shield.
that is just how tough it is today.
as for nadal, he is clearly spent. he has used up quite a bit of mental and physical capital in taking all that he has taken. winning 10 titles with such a demanding style of play would kill just about anybody else. he may have hit the wall.
this is why I cant see nadal taking anymore titles this year.
Nadal might be spent but Nole should be spent too but instead he has just gone on and defended two back to back titles. I think this season, the Asian swing in particular, suits both Nole and Murray better. It used to be Federer as well. Shanghai is not indoors but it has all the elements of an indoor tournament.
Nole had a long season too. Won the AO, made the final of Wimbledon and USO, lost to Nadal at the RG semi. Those are some tough losses but bounced back right after the USO. It was however a good strategy on his part that he didn't go for too much for the clay tournaments this year. So he should be slightly fresher than Nadal at this point of the year, but I am still convinced this part of the season suits him better than Nadal.
i hear ya. nole is just far more brutally efficient as a tennis player:
1. he serves bigger
2. his return is the biggest in history. everything comes back.
3. he plays close to the baseline so he gives up zero court.
4. he is beyond rock solid off both wings so he can control the center of the court better than anybody on the planet.
5. nole is taller than nadal so he has more leverage. that means he has easy power.
so beating nole is no easy matter. nadal has to summon all of his will and all of mental and physical energies.