The last week of tennis has brought surprising upheavals in the ATP ranking. The tournaments in Dubai and Acapulco were held, but despite not having ‘top-level’ tournaments, the ranking has been turned upside down. After more than a year at the top of the ranking, the number one in the world ‘changes hands’ and finds a new owner.Novak Djokovic not only lost dramatically in the Dubai quarters against Vesely but also lost the lead, passed to the Russian Daniil Medvedev, tennis player who becomes number one for the first time in his career. This is not the only change in a Top Ten upset by the last tournaments and which sees the progress of Rafael Nadal and Andrey Rublev, winners of Acapulco and Dubai.Thanks to these successes, the …