Shaun Kenny-Dowall's father John Dowall says his son is "1000 per cent" innocent of the domestic violence allegations levelled against him.
Kenny-Dowall was arrested on Saturday and charged with a string of offences including the common assault of, and stalking of his former partner Jessica Peris.
The Kiwi international will face Waverley Local Court on Thursday, where he is expected to plead not guilty to all 10 charges.
Dowall, a Paralympic gold medallist, has taken to Facebook to protest his son's innocence.
"He is 1000 % innocent of all the charges that have been put before him i repeat 1000% innocent and i will stand by him every step of the way for ever long it takes until his name character and integrity has been restored," John wrote in a post late on Monday night next to a photo of he and Shaun.