Kyle Edmund might have been born in South Africa but he has the traditional problem faced by Britons in the sun.
"I got a bit burned," he said after an early round at the Australian Open last week.
"I didn't put enough sunscreen on. I have to take responsibility - my mum gives me a lecture if I don't."
That is about the only misstep from the 23-year-old since he arrived in Melbourne earlier this month.
He opened the tournament with the best win of his career over the 11th seed, followed it with a five-set win in 40C heat in round three, fought back to reach his first Grand Slam quarter-final, and upset the world number three to reach the semi-final.