Believe it or not, today's tennis stars were sometimes kids and they made some problems.
Andy Murray, for example, said that his biggest problem was bad behavior on the tennis court.
Kei Nishikori turned out to be an obedient child when he said he never got into trouble.
And the unsuccessful defending champion from the Western & Southern Open Kiki Bertens said that her parents put her in a cold shower to cool her down.
You can watch the full video below.
[embed]https://twitter.com/CincyTennis/status/1161775211471134721[/embed]