David Brooks had not long got into his room at the Vale Resort, Wales' training base on the outskirts of Cardiff, when he heard a knock on the door.
It was October 2021 and Brooks had reported for training with his Wales team-mates for that month's World Cup qualifiers.
As usual, the players had their medical tests at the start of the week. Having told team doctor Jonathan Houghton that he was struggling to sleep, Brooks asked for some paracetamol and went back to his room, thinking little of his request.
But the Bournemouth midfielder, then 24, had also mentioned he had recently been kept awake by night sweats and had lost a considerable amount of weight.