![KEY BISCAYNE, FL - APRIL 01: John Isner (USA) defeats Alexander Zverev (GER) 67(4) 64 64 in the Mens Final at the Miami Open held at the Crandon Park Tennis Center on KEY BISCAYNE, FL - APRIL 01: John Isner (USA) defeats Alexander Zverev (GER) 67(4) 64 64 in the Mens Final at the Miami Open held at the Crandon Park Tennis Center on](https://c8.alamy.com/comp/MAGBGM/key-biscayne-fl-april-01-john-isner-usa-defeats-alexander-zverev-ger-674-64-64-in-the-mens-final-at-the-miami-open-held-at-the-crandon-park-tennis-center-on-april-1-2018-in-key-biscayne-florida-people-john-isner-alexander-zverev-MAGBGM.jpg)
KEY BISCAYNE, FL - APRIL 01: John Isner (USA) defeats Alexander Zverev (GER) 67(4) 64 64 in the Mens Final at the Miami Open held at the Crandon Park Tennis Center on
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Tennis news - Alexander Zverev beats John Isner for semi-final shot at ATP World Tour Finals - Eurosport
![KEY BISCAYNE, FL - APRIL 01: John Isner (USA) defeats Alexander Zverev (GER) 67(4) 64 64 in the Mens Final at the Miami Open held at the Crandon Park Tennis Center on KEY BISCAYNE, FL - APRIL 01: John Isner (USA) defeats Alexander Zverev (GER) 67(4) 64 64 in the Mens Final at the Miami Open held at the Crandon Park Tennis Center on](https://c8.alamy.com/comp/MATE75/key-biscayne-fl-april-01-john-isner-usa-defeats-alexander-zverev-ger-674-64-64-in-the-mens-final-at-the-miami-open-held-at-the-crandon-park-tennis-center-on-april-1-2018-in-key-biscayne-florida-people-john-isner-alexander-zverev-MATE75.jpg)
KEY BISCAYNE, FL - APRIL 01: John Isner (USA) defeats Alexander Zverev (GER) 67(4) 64 64 in the Mens Final at the Miami Open held at the Crandon Park Tennis Center on
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Tall timber: 198cm-tall Alexander Zverev (R) beat 208cm-tall John Isner (L) in the first round in Shanghai; Getty Images | Tennismash
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