He was given a red card after appearing to throw something at the referee, who had made a decision against his team.
Rudiger's teammates had to restrain him to prevent further incidents.
Former German football star Lothar Matthaus thinks Rudiger should face a long suspension.
Matthaus hopes La Liga will give Rudiger a ban of more than 10 weeks.
Rudiger has already apologized for his behavior and now waits for the outcome of his case.
