On Wednesday, Australian Border Force (ABF) officials said the player had “failed to provide appropriate evidence” at Melbourne Airport because a prior infection was not a valid reason to enter without a vaccination.
Prime Minister Scott Morrison later confirmed that this was the case under federal rules – despite an exemption provided by the Victorian state government.
In court documents released on Saturday, Djokovic’s lawyers said the player had been granted a temporary visa to enter the country and provided with a “medical exemption from Covid vaccination” by Tennis Australia because of his recent infection.
When the case comes to court on Monday, Djokovic’s lawyers will effectively say that the decision to revoke the visa was affected by a variety of “jurisdictional errors”.
According to BBC, they will argue that the correct procedures were not followed in revoking the document – for example questioning whether the player was properly informed of the move to cancel the visa and whether he was given the correct legal opportunity to respond.
Another key argument, the documents suggest, will be over whether border officials misconstrued the guidance around what constituted a medical reason not to be vaccinated.