"It's normal even when I was winning a lot I had doubts, so you can imagine I had a lot more when I'm not winning and have injuries," Nadal said.
"You're ready to work more ... I had a great career but a lot of tough moments, so that makes me enjoy even more the good moments I have, especially on this unbelievable court.
"(Raonic) beat me two weeks ago in Brisbane, so I decided to go more inside the court on the return. I knew there were going to be tough moments in the match, he has one of the top two serves on the tour and he's able to play so aggressive on the return."
“Grigor is a great player. Everybody thought he was gonna be a very top, top player before today, and finally he started the season unbelievable," Nadal said.
"He's playing so, so good. He's very confident, he's playing very well, and I'm going to have a very tough match. I know I'm going to have to play my best tennis if I'm going to have a chance."
