(CBS) – Two men have been charged – one with a felony – in connection with a fight that left an off-duty Chicago police officer injured.

Elijah Murphy, 21, is charged with aggravated battery.

It all stems from an incident early Friday in the River North district.

Two off-duty officers, one with his wife, were walking near Hubbard and LaSalle when three men approached the group. An argument escalated into a physical fight, authorities say.

A 32-year old officer suffered a head injury. He and his wife are expected to make full recoveries.

A second suspect faces a  misdemeanor charge.