The ATP Tour Grand Slam season was brought to an end after the conclusion of the US Open, but there is plenty still at stake this year.
The Davis Cup Finals group stages have also only just finished, but there is also the small matter of the Laver Cup.
Berlin will play host to the highly-anticipated event, with Team Europe set to take on Team World later this month.
The likes of Carlos Alcaraz and Alexander Zverev will be hoping to clinch a much-needed win for the former on home soil.
But they will come up against plenty of in-form players, including American duo Taylor Fritz and Frances Tiafoe.
Frances Tiafoe and Andrey Rublev agree over scariest server on tour
Also involved for Team World is Ben Shelton, whose serving has now been praised by his compatriot Tiafoe and fellow ATP star Andrey Rublev.
Asked by the ATP Tour whose serve they would be scared of if they were a tennis ball, Rublev answered: “Ben Shelton,” with Tiafoe concurring: “Ben Shelton, serving huge man.”
Ben Shelton breaks serving record at Wimbledon
The American’s serving truly is a sight to behold, with not many players wanting to be on the receiving end of his hard-hitting.
Shelton hit the fastest serve in Wimbledon history earlier this summer, with Lloyd Harris the unlucky recipient of the 153mph rocket.
It ranks as the ninth fastest serve of all time, although for John McEnroe, fast serving does not always equate to the best serving.
READ MORE: Who is Ben Shelton? Meet the American tennis star with the fastest serve in Wimbledon history
McEnroe says Isner is the best server ever, with the now-retired star still atop the ATP list for the most aces ever.
Shelton will be eager to continue his fierce serving in the upcoming Laver Cup, where McEnroe will look to overcome opposing captain Bjorn Borg for a third-successive Team World success.
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