كتب : وكالات
"I am very pleased to sign with Hertha," the Etoile Sahel player was quoted as saying by Bild on Wednesday.
"Hertha have great fans and Berlin is a beautiful city.
"I will try to do my best in the start of my European career."
The German sports magazine said that the deal is likely to be sealed in a week.
Chermiti, 20, put on impressive displays in the African Champions League, helping Etoile snatch the title in 2007.
He was also a member of the Tunisian national team in the 2008 African Cup of Nations.