Of all the gifts that tennis has given me over the years, the greatest, without a doubt, has been the people I've met along the way: my friends, my competitors, and most of all the fans who give the sport its life.

Yes, in 2018, I was awarded the Breakthrough Prize for the discovery. I was a bit dumbstruck, never expecting that kind of thing to happen. I was keen that the money should be used well and the best way to do that seemed to be to encourage a more diverse research student population from under-represented groups.

we should invest the majority of our wealth the same way we are investing the majority of our time- by helping to improve people's lives.

In the last 24 years that I have played for India I have made new friends, and before that I have had friends from my childhood. They have all had a terrific contribution. As and when I have called them to come and bowl to me at the nets, they have left their work aside to come and help me. Be it joining me on holidays and having discussions with me on cricket, or how I was a little stressed and wanting to find a solution so I can perform better. All those moments my friends were with me. Even for when I was injured, I would wake up in the morning because I couldn't sleep and thought that my career was over because of injuries, that is when my friends have woken up at 3 o'clock in the morning to drive with me and make me believe that my career was not over. Life would be incomplete without all those friends.

There are days when I wake up and don't want to move, but you must show up!

I have never felt the need to trash talk, and I'm not going to start now! I just quietly do my job and then quietly step into the ring to showcase what I can do. And one thing is for sure: I'm going to leave it all in the ring. I've always had such a will to win, and I always give my heart and my soul, so I don't need to change who I am.