Boris Becker's son acts over 'clearly racist' AfD MP tweet Published duration 4 January 2018

image copyright AFP/Getty image caption The German lawmaker denies that he made the comments about Noah Becker (right)

The son of German tennis champion Boris Becker is pressing charges against Jens Maier of the far-right Alternative for Germany (AfD) party, his lawyer says.

It comes after a tweet posted to the politician's Twitter account called the 23-year-old a "little half-negro".

Noah Becker has an African-American grandfather on his mother's side.

Mr Maier has denied writing the tweet, which has since been deleted. He blamed one of his staff members.

The tweet was written in response to an interview Noah Becker gave in which he described Berlin as "a white city" compared to other European capitals, and said he had been attacked there because of his skin colour.

The artist and musician also discussed his experience growing up with a three-time Wimbledon champion as a father.

image copyright Getty Images image caption The DJ is the son of tennis champion Becker and his ex-wife Barbara Becker

"It seems the little half-negro simply got too little attention - that's the only explanation for his behaviour," the message posted to Mr Maier's account on Tuesday said, in German.

'Clearly racist'