The World Athletics Relays is an international track-and-field event where teams from around the world compete in relay races.
This year's edition will be held in the Chinese port city of Guangzhou near Hong Kong on Saturday and Sunday.
Team Poland includes well-known faces such as Natalia Bukowiecka (née Kaczmarek), Justyna Święty-Ersetic and Kajetan Duszyński, according to an announcement by the Polish Athletic Association (PZLA).
In addition to medals, the event will provide athletes with a chance to qualify for the World Athletics Championships in Tokyo in September.
Poland won one silver medal at last year's World Athletics Relays in the Bahamas.
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Source: IAR, PAP, pzla.pl