Djokovic's father leads protest against tennis star's treatment in Australia

Several dozen people gather in front of the Serbian Parliament as Novak Djokovic's father Srdjan leads a protest against the treatment of his son by the Australian authorities.

Several dozen people gather in front of the Serbian Parliament as Novak Djokovic's father Srdjan leads a protest against the treatment of his son by the Australian authorities.

The world tennis number one has been threatened with deportation after the cancellation of his visa, 10 days before the first Grand Slam tournament of the year.