Rafael Nadal has insisted that he can improve following his victory over Novak Djokovic in the final of the Rome Open.

It was the Spaniard's second successive final win over his Serbian opponent, and he has vowed to become "more aggressive".

"I don't think I played that well, I can do better. I am trying to play more aggressive and I am hitting the ball better than last year," he told reporters.

"He is always the favourite even if I win against him seven times."

Djokovic, meanwhile, stated: "He is the best player in the world on this surface."

Djokovic double-faulted on the final point to hand Nadal the win.