Sanders was charged in late December with a fourth-degree sex offense after he was accused of groping a stadium worker. The charges stem from allegations that Sanders allegedly grabbed the woman's breasts and buttocks and kissed her without her permission while she was escorting him to his car at the stadium.
The second charge was made public on Tuesday when the case was transferred from District Court to Circuit Court for trial.
Sanders, who has been placed on paid leave by the Ravens, has denied the allegations.
A former Baltimore homicide detective, Sanders has been with the Ravens for more than 10 years.
He had a role in the Ravens' handling of the domestic violence involving former running back Ray Rice. In September, ESPN reported that an Atlantic City police officer watched footage of Rice striking his then-fiancee, Janay Palmer, in a casino elevator. He later described what he saw to Sanders, who relayed that information to the Ravens.
- Mike Fiammetta