Indonesia’s Jonatan Christie was competing at a tournament in Thailand earlier this year when he learned that his older brother, Ivan, had contracted the illness back home.

The 23-year-old Christie’s mother, father and brother all eventually ended up in hospital, but his sibling suffered most.

“After I came back from Thailand, my mother said to me, ‘he is already sick’,” the 2018 Asian Games badminton champion said.

“My mother and father were ill at the same time, but were in a different hospital than my brother.

“I was going to my father and mother’s hospital, and then in the evening I was going to my brother’s hospital, so I had to take time out for them.”

Ivan sadly died, and it was up to Christie to tell his parents the heartbreaking news.

“After my brother passed away, I did not tell my mother and father for maybe one week,” said Christie, who defeated Aram Mahmoud of the Refugee Olympic Team in his Tokyo opener on Saturday.

“I kept it to myself. After my father and mother recovered, then I had to tell them. Of course, my mother was crying a lot.”

Christie, the world No 7, says that his parents have now recovered and are “happy to see me in the Olympics”.

But the memory of his brother is never far away as Christie attempts to stamp his mark on the badminton in the Japanese capital — even if his preparations were badly disrupted by the family tragedy.

“This is for him and I want to do my best for him,” he said.

The coronavirus saw the Tokyo Games delayed by a year and most events are taking place without spectators.