Rafael Nadal attends the Johan Cruyff memorial in a special condolence area set up at Camp Nou stadium, in Barcelona on March 29, 2016. Cruyff, one of the greatest footballers of all time who dazzled with his artistry, died on March 29, 2016 at the age of 68 after losing a battle with lung cancer, prompting an avalanche of tributes from around the sports world.