Sergiy Stakhovsky was in Dubai on holiday when he got the phone call from his parents that he had been dreading.
They could hear explosions outside their house in the Ukrainian capital of Kyiv.
Russia had invaded.
Stakhovsky switched on the news and from that moment did not sleep or think for three days while he tried to process what was going on.
"I couldn't believe the pictures I was seeing," he tells the BBC. "I was trying to understand where my family were, what they were doing and how bad it was."
Just a month before, Stakhovsky had been playing in qualifying for the Australian Open.