A few weeks ago the news came out that Andy Murray would be coaching Novak Djokovic. At first I hesitated, but then I realized that I once did the same thing with my sister, and as soon as I retired I started coaching her. I thought, “I’m sure he’ll do well.” Knowing Andy from his youth when he spent his early years away from home at our tennis academy in Barcelona, I knew he would one day become a coach, but I never thought he would do it so soon after retiring, let alone picking the No. 1 player in the world.