Sacked SBS presenter Scott McIntyre is suing the government broadcaster for discrimination, claiming his controversial comments about Anzac Day represented a political opinion.

Mr McIntyre lost his job after he posted a series of comments on Twitter last month in which he referred to some Australians commemorating Anzac Day as "poorly-read, largely white, nationalist drinker and gamblers".

Maurice Blackburn will argue SBS sacked Scott McIntyre without launching a 'proper investigation'

The former soccer reporter and presenter has engaged Maurice Blackburn Lawyers, who will argue his comments represented a political opinion, which is allowed under Section 351 of the Fair Work Act.

"The case is not about whether Mr McIntyre's opinions are correct or not," Maurice Blackburn said in a statement.