Guido Olivares had argued that Alexander Zverev would surely become the number 1 in the world and that it remained to be seen whether it would happen on November 2, November 9, or November 16. He added that the German would be the thirtieth number 1 in the history of tennis. https://t.co/AJLWXHo7k7 #tennis #Zverev #numero1 (translated)