Alexander Zverev, Tim Puetz, Philipp Kohlschreiber, Jan-Lennard Struff and team captain Michael Kohlmann attend the draw for their Davis Cup Qualifiers tie against Hungary.

Alexander Zverev beats Alex Bolt in straight sets at the Australian Open on Saturday.

Fourth seed Alexander Zverev fights hard against Jeremy Chardy on Thursday night at the Australian Open.

Alexander Zverev reaches the second round of the Australian Open on Tuesday.

Alexander Zverev will meet Aljaz Bedene in the first round of the Australian Open.

Alexander Zverev celebrates winning the Nitto ATP Finals crown with his team, including Ivan Lendl, and his parents, Alexander Sr. and Irina.

Alexander Zverev is trying to become the first German to win the Nitto ATP Finals since 1995.

Alexander Zverev seeks the biggest title of his career in the Nitto ATP Finals championship against five-time winner Novak Djokovic.

Alexander Zverev and Boris Becker are the last two Germans to reach the championship match at the Nitto ATP Finals.

The eight singles players competing at the Nitto ATP Finals take the Jubilee line on the London Underground from North Greenwich station to Westminster station to attend the Nitto ATP Finals Official Launch presented by Moët & Chandon at London's iconic Houses of Parliament on November 9, 2018 in London, England. The tournament will be played 11-18 November at The O2.

The eight singles players competing at the Nitto ATP Finals take the Jubilee line on the London Underground from North Greenwich station to Westminster station to attend the Nitto ATP Finals Official Launch presented by Moët & Chandon at London's iconic Houses of Parliament on November 9, 2018 in London, England. The tournament will be played 11-18 November at The O2.

The elite eight have arrived in London for the Nitto ATP Finals.

Alexander Zverev trains with his coach Ivan Lendl on Thursday in London ahead of the Nitto ATP Finals.

Alexander Zverev beats Diego Schwartzman in straight sets at the Rolex Paris Masters on Thursday.

Alexander Zverev defeats Frances Tiafoe in straight sets at the Rolex Paris Masters on Wednesday.

Alexander Zverev defeats Roberto Bautista Agut to earn his 52nd match win of the season.

Alexander Zverev reaches the Basel quarter-finals with a straight-sets win against Aussie Alexei Popyrin.

Alexander Zverev advances on Wednesday at the Swiss Indoors Basel despite spraying 33 unforced errors against Dutchman Robin Haase.

Novak Djokovic, who beat Kevin Anderson on Friday, is now 16 matches unbeaten and on course for a third Rolex Shanghai Masters title.

Alexander Zverev beats Kyle Edmund on Friday in Shanghai to qualify for the 2018 Nitto ATP Finals.

Alexander Zverev strikes 14 winners in his victory over fellow #NextGenATP star Alex de Minaur on Thursday in Shanghai for a place in the quarter-finals.

Fourth seed Alexander Zverev strikes a forehand en route to beating Nikoloz Basilashvili on Wednesday in Shanghai.

Marin Cilic and Alexander Zverev are both in contention to qualify for the Nitto ATP Finals in London from 11-18 November.

Alexander Zverev and Marin Cilic enjoy decorating lanterns ahead of their opening matches at the 10th edition of the Rolex Shanghai Masters.