Germany's Alexander Zverev comes from a tennis-playing family; his father represented the Soviet Union in the Davis Cup and his older brother Mischa also plays on the ATP Tour.
One of the most talented players on the men's professional tennis tour, in November 2018, the younger of the two Zverev brothers became the first German to win the ATP Finals since Boris Becker did so in 1995. At the age of 20, he became the youngest player to enter the ATP top 20 since Novak Djokovic.
Germany's Alexander Zverev kept his nerve to win his must-win game against Daniil Medvedev and set up a semi-final against Dominic Thiem on Saturday. Zverev's victory means Rafael Nadal, the world number one, misses out.
Alexander Zverev matched his career best in Melbourne after a tough 7-6 (7-5), 6-4, 5-7, 6-7 (8-6), 6-1 win over France's Jeremy Chardy. But the third round won't be enough for the German who has bigger challenges ahead.