Hiring Andy Murray as his coach came naturally for Novak Djokovic. On a trip to Argentina to play in a farewell match for Juan Martín del Potro, the Serbian explained why he chose his former rival after being without a coach for six months.

Novak Djokovic has been told that success is no guarantee after hiring Andy Murray as his new coach. After scrapping it out for over a decade at tennis' summit, Djokovic and Murray have now put their rivalry aside to form a surprising partnership.

Novak Djokovic says his decision to appoint former rival Andy Murray as his coach was "a surprise to everyone" but is "exciting for tennis".