Andy Murray is standing in the middle of Thruxton Circuit, serving tennis balls at sports cars as they whip past him in the fast lane. The stunt has been brainstormed with a viral marketing campaign in mind, and bears little resemblance to the dreamily dance-like movements we will see at Wimbledon.

Even so, he is into it. A direct hit on a rear wing brings a raised fist and bared-teeth grimace, as if it were an ace on Centre Court. A miss has him staring up at the sky in self-admonishment, or glaring accusingly at his racket.

When the cars loop around in preparation for another pass, he turns and hits catches to his physio, Shane Annun, who warmed him up with a shoulder massage.