Raphael Nadal uses a method called compensatory control to…

Page 124 keyword thought Raphael Nadal uses a method called compensatory control to stop the chatter in his head. He always arranges things in exactly the same way. By creating order in his physical environment, it gives him order internally and that is what he's looking for in his head is calm.

— from The Mind in the Cockpit · Chatter, the voice in our head, why it matters and how to Harness it by Ethan Kross