Rafael Nadal admits he'll have to be 'at his best' to beat Novak Djokovic in Sunday's French Open final. Nadal: "I can't predict the future, no? The only thing I know is to play against Novak [Djokovic], I need to play my best. Without playing my best tennis, situation is very difficult. I know that it's a court that I have been playing well for such a long time, so that helps. But at the same time he has an amazing record here, too, being in the final rounds almost every single time. He's one of the toughest opponents possible. But I am here to keep trying my best. I like to play in this scenario. I know I have to make a step forward. I think I did one today. But for Sunday it's not enough. I need to make another one. That's what I'm looking for. I'm going to work hard to try to make that happen."