Greenwich Police responded to a residence in Pemberwick just after midnight on Monday on a report of a physical altercation between two men.
Upon arrival, investigation revealed that an altercation had occurred and that there was a juvenile on scene attempting to break up the fight.
Police arrested Luis Santana, 44, of Greenwich and charged him with Risk of Injury to a Child, Disorderly Conduct and Assault 3.
The fight resulted in physical injuries to one of the men that required medical attention.
At the time of the report the man was not assigned a court date because he had been admitted to Stamford Hospital. His bond was set at $1,000.