BERLIN (AFP) - Brazilian international Marcelinho is under investigation by German police and faces a possible grievous bodily harm charge following a late-night attack in a Berlin nightclub.

German tabloid Bild reported the 32-year-old VfL Wolfsburg midfielder, who has five caps for Brazil and scored one goal, is being investigated after a 44-year-old man received five stitches in a head wound in the early hours of Easter Monday.

The man reported the incident to the police and a spokesman confirmed an investigation has been launched.

The incident at the Cazz Club in Charlottenburg left the man - simply known as Ingo H - covered in blood and he received treatment at a hospital in the suburb of Kreuzberg.

The man claims he was attacked by the Brazilian star with a beer bottle after a disagreement, but Marcelinho is adamant he did nothing wrong.

"The man provoked me and there was a set to," the Brazilian told Bild.

"If this man wants to go to the police, the matter will be clarified by the police."