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The perv fan who groped "Modern Family" star Sarah Hyland's chest in Australia this week has been charged with assault with an act of indecency, TMZ has learned.

The 29-year-old man was arrested Tuesday outside a "Modern Family" after-party in Sydney. Hyland was posing with fans when he allegedly grabbed her breast.

23-year-old Hyland immediately left the event in tears while her security handled the creep.