Ronald Renwick, 71, has been unable to return to Queensland since he travelled to Sydney to receive heart surgery. The retiree collapsed at the border following an interview with Sunrise.
Miss Cox, who clinched victory in her cycling time trial and smashed her own world record, said she had been boosted by a special video message from her grandad Terry.
Demonstrations took place across Sydney on Saturday following Premier Gladys Berejiklian’s announcement restrictions would be tightened to stem the spread of the highly infectious Delta variant.
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