Poland’s world No.1 Iga Swiatek has teamed up with fellow-tennis players Agnieszka Radwanska, Elina Svitolina, Sergiy Stakhovsky and Martyn Pawelski for a one-day special event to raise funds for people affected by Russia’s invasion of Ukraine.

“Iga Swiatek & Friends for Ukraine”, scheduled for July 23 in Poland’s Krakow, will feature a mixed doubles match and a set of singles between Swiatek and compatriot Radwanska. Both will be umpired by Ukrainian Svitolina.

“For months I have been working with my team on a charity initiative for Ukraine to support those who suffer because of the war,” French Open champion Swiatek said in a statement on social media on Wednesday.

“There will also be a special guest representing Ukraine — former (Ukraine) football player Andriy Shevchenko.”

Ukraine was invaded by Russia in February.

Swiatek, who is on a 36-match winning streak, has been vocal about her support for the beleaguered country, sporting a blue and yellow ribbon on her hat in recent months.

The 21-year-old beat Jana Fett 6-0, 6-3 in her opening round match at Wimbledon on Tuesday and takes on Lesley Pattinama Kerkhove on Thursday.