That's a bunch of sets Nadal has lost in the clay court season this year. He's still finding a way to pull out the wins, but his days of invincibility on clay are over. Also this points to the idea that he won't win any grass/hard events in the 2nd half.
The field is getting better.
Nadal grinds and lets the errors come but players don't take advantage by playing a little safer themselves till an opportunity presents itself, they continue to go for higher risk shots.
Ferrer gave away so many chances on crucial points, I was just waiting for it to happen and it did.
Gulbis had things going his way but tried to force the issue by pounding every ball he could instead of waiting on balls that are safer to blast. He's smart though and will adjust as well as get his game more consistent.
If Nadal has problems on clay then elsewhere he'll have more problems.
Nole didn't push very hard, he looked a little tired or wasn't quite ready to put forth high intensity tennis.
All he wants is RG, he could care less about Rome I think.