The club said Reddy had admitted the consumption of alcohol on the flight to the New Zealand capital for the first round play-off match against Wellington Phoenix.
The 30-year-old Reddy will also face charges under the A-League's code of conduct, which makes it highly unlikely that he will feature in the remainder of the play-offs.
Reddy lost his starting spot at Australia's glamour club after being dropped in favour of team-mate Ivan Necevski last month and would more than likely have been on the bench for Friday's match.
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