Derrick Ward is now facing some serious time behind bars after his alleged robbery spree ... 'cause TMZ Sports has learned he's just been hit with FIVE felony charges in the case.
According to court records, prosecutors levied the counts against the Super Bowl champion on Wednesday -- just two days after he was arrested.
The records show all five charges against Ward were second-degree robbery.
We broke the story, the ex-New York Giants tailback was thrown in jail on Monday afternoon following allegations he used force and fear to rob establishments in the Los Angeles area, including gas stations.