Grimes was eventually diagnosed with an elbow contusion, a concussion, cervical strain, a headache and a deviated septum, according to the filing.
"The emergency physician informed Sarah that her injuries were very serious and could have been life-threatening," the lawsuit said.
Grimes told police that she did not want to press criminal charges against Saban and she allegedly plead guilty to an unnamed charge when the matter was submitted to Judicial Affairs at the University of Alabama.
According to the lawsuit, Saban was ordered to take psychological testing, anger management classes and have no contact with Grimes.
"As a result of the beating and the head injuries Sarah Grimes sustained by Kristen Saban, Sarah has had repeated night terrors, anxiety, physical trembling, fears of dying from brain injuries, trouble sleeping, and intrusive recollections of the event," according to the lawsuit.
Grimes is seeking a trial by jury and monetary damages, the amount of which is unspecified except for the qualification that it exceeds $10,000.
In a statement sent to ABCNews.com today, Saban's attorney Josh Hayes wrote, "Bob Prince and I are proud to represent Kristen Saban. We strongly dispute the allegations--and that's all they are at this point--made in the Complaint. We will vigorously defend Kristen and the truth will come out."
Hayes declined to comment further on the matter, but filed a motion to dismiss the claims on Thursday.
"The defendant denies each and every material allegation of the plaintiff's Complaint, demands strict proof thereof, and specifically denies that the plaintiff is entitled to recover damages from this defendant," Hayes wrote in his motion. "The defendant pleads that the plaintiff was the first aggressor in this incident and therefore she acted in self-defense."
In an email to ABCNews.com, University of Alabama director of media relations Cathy Andreen wrote, "Federal privacy laws prevent us from commenting on the lawsuit."