A criminal complaint sent to the Las Vegas Justice Court on Monday charges Knight with two counts of felony drug possession and one count of misdemeanor battery.
A court spokeswoman says the charges were being processed Tuesday.
Knight’s attorney wasn’t immediately available for comment.
Authorities said the woman wasn’t stabbed, but was treated at a hospital for injuries. Police say Knight had the drugs Ecstasy and hydrocodone when they arrested him.
Knight was later released after posting $19,000 bail.