If I were a Nadal fan I would take heart. He played very well in the first set today. His fitness, match toughness and confidence are not yet where they need to be. But my impression from the first set, in particular, was that he can and will play better tennis in 2015.
Djokovic was very sharp today and definitely had the edge in the mental battle. And why wouldn't he? He's at his physical peak and riding a long winning streak. The matches between these guys have always come down to who has the mental advantage on the day. It's natural for Djokovic to have that advantage now. But remember the confidence and superior game Djoker showed in 2011. Then, old man Fed broke that streak at Roland Garros. The great ones can rise and beat anyone on the day, when they are feeling it. Rafa will definitely still have his days when he steps on the court and knows that he can win against anyone, even Djoker.
And even physically, I thought Rafa looked pretty good for his age. At the end of the first set he hit a forehand winner that was about 90mph and had 3500+ rpms of topspin on it. That means his racquet head speed (tip) was about 95-97 mph! That is ****ing insane! It's as fast as some pros swing on their serves. Based on that shot, I think his forehand RHS is still the fastest in the world.
But he's always had a problem with keeping that forehand deep at times, and today, particularly as the match wore on, was one of those days. He will get better as the season goes on. Never count the great ones out. As long as he's healthy he can win any tournament he enters. (And I'm a Federer fan.)