Zenit St Petersburg forward Kokorin and Krasnodar midfielder Mamayev could face jail and will be held in custody for two months over the attacks captured on CCTV on Oct. 8.
Footage circulated widely by Russian media shows a man being kicked and punched by a group of people and another incident in which two civil servants appeared to be assaulted in a cafe. The two footballers were present at both incidents.
The court also ordered Kokorin's younger brother, Kirill, be held for two months.
The three men have been charged with hooliganism, the court said, which carries a jail term of up to seven years.
Kokorin told the court he repented and apologised to one of the victims, but the court rejected his lawyer's request to release him pending trial, RIA news agency reported.
The soccer players also face possible sanctions from their clubs. [nL8N1WQ567]
Kokorin has 48 caps for Russia but missed this year's World Cup in his home country with a knee injury. Mamayev has represented the national team 15 times but also was not included on the world cup squad.
(Reporting by Tom Balmforth; Editing by Peter Graff)
