Vassiliki Kalogeropoulou: What is a Greek olympian in tennis doing in Melbourne's Australian Open

Greek tennis champion Vassiliki Kalogeropoulou is at the Australian Open in Melbourne and takes part in exhibition matches with some of the top hearing-impaired players

Vasiliki Kalogeropoulou / SBS Greek / Panos Apostolou

Greek tennis player Vasiliki Kalogeropoulou and her coach, Giannis Ioannidis / SBS Greek / Panos Apostolou