London will go up against Manchester, Singapore, Tokyo and Turin in a bid to continue to host the ATP Finals from 2021.
World number two Rafael Nadal still has "two or three years more" at the highest level, according to fellow Spaniard Juan Carlos Ferrero.
The French Tennis Federation requires a new Davis Cup captain after Amelie Mauresmo opted to coach Lucas Pouille instead.
The 2019 Australian Open will provide Serena Williams with her next opportunity to equal Margaret Court's grand slam record of 24 titles.
After getting "rinsed" by tournament director Keely O'Brien, Andy Murray joked about his future participation at the Citi Open.
After winning the ATP Finals, Alexander Zverev played down suggestions he could be as successful as Novak Djokovic.
When Novak Djokovic met Alexander Zverev in the group phase of the ATP Finals, the world number one had a much easier ride than on Sunday.
Describing his ATP Finals triumph as "the biggest title I have ever won", Alexander Zverev took the time to heap praise on Novak Djokovic.
Alexander Zverev struck another blow for the next generation by defeating Novak Djokovic in a brilliant ATP Finals decider.
After controversy at the ATP Finals, Alexander Zverev was backed by world number one Novak Djokovic.