Former tennis star’s lawyer alleges Herald Sun articles are defamatory and constitute a serious invasion of Brittany Groth’s privacy under new tort lawsFollow our Australia news live blog for latest updatesGet our breaking news email, free app or daily news podcastVictorian Liberal party deputy leader and former Australian tennis star, Sam Groth, has threatened legal action over News Corp stories which claimed Liberal colleagues of Groth’s were querying how he began his relationship with his wife, Brittany, with his lawyers claiming the articles are worse than “gutter journalism”.The legal letter from law firm Giles George alleges two articles in the