Elina Svitolina: Worried for her parents, Ukrainian tennis star says she has been suffering sleepless nights

Ukrainian tennis player Elina Svitolina says she has been suffering sleepless nights following the Russian invasion of her home country as she worries about her family and friends back home, describing what has happened as a "horrible time for all Ukrainians."

The 27-year-old, who was in Monterrey, Mexico, for a tournament, said on Sunday that she is terrified for her own family who remain in the war-stricken country, taking refuge in the southern city of Odessa.

"I haven't been sleeping much, trying to see what is happening, how we can help and what we can do," she told CNN Sport.