PerthNow Coughing Osaka suffers straight-sets United Cup loss
Former world No.1 Naomi Osaka was seen coughing at times on the way to a 6-4 6-2 United Cup loss to Greece's Maria Sakkari.
Former world No.1 Naomi Osaka was seen coughing at times on the way to a 6-4 6-2 United Cup loss to Greece's Maria Sakkari.