There are days when I double fault.

Now I have to do a lot more work. I have to train more and do a lot more, you know, work on my body and take care of the little things in order to feel great for my body to be in good shape.

I've been a professional for I think 13, 14 years. It's not easy hitting balls every day and staying really motivated throughout the whole period. It's normal [that] you're going to have ups and downs. But I found my way again. And I love the sport. I love competing. I love battling. I love being out there and playing in front of crowds. This is what I've been doing since I was a child. There's nothing else that I want to do.

I decided to play tennis not because I wanted to be a professional player, but because my parents wanted me to get involved in something so I wouldnt be running around the streets in Serbia.

There are days when I double fault.

It's not easy, you know, hitting balls every day, and, you know, staying really motivated throughout the whole period. It's normal you're going to have ups and downs.

I love the sport. I love competing. I love battling. I love being out there and, you know, playing in front of crowds. This is what I have been doing since I was a child, so, you know, there's nothing else that I want to do at this point.