KNOX COUNTY (WATE) -- An assistant principal at Powell High School is under investigation by the school system after she was accused of having a sexual relationship with a student and changing students' grades.
Assistant Principal Kim Kallenberg, 36, is being investigated. She was put on administrative leave with pay starting July 14.
"I want you to know that I have cooperated fully with Knox County Schools. All allegations are false and I look forward to returning to my position," Kallenberg said Tuesday.
Knoxville attorney Gregory Isaacs, who is representing Kallenberg, says, "My investigators have obtained a sworn statement from the student that is involved in the allegations."
In the affidavit 6 News saw Tuesday, the student's name is marked out.
But the Knoxville News Sentinel says the student at the center of the sexual relationship allegation is Joseph Lee Smith, a football standout from Powell with a full athletic scholarship to UT this fall. He's a 6'6," 245 pound tight end who committed to the Vols on signing day in February.
In the affidavit, Joseph Smith, who says he's over 18, denies the claim: "I have never had any sexual or inappropriate relationship with Kimberly L. Kallenberg."
Powell made the state playoffs last year and Smith, one of the top prospects in the state, scored six touchdowns during the season. He was also named All American and All South by various publications.
Vols head coach Phillip Fulmer is out of town but UT Public Relations Director Tiffany Carpenter says this is the first the school has heard of the situation. She told 6 News, "At this moment, we do not have any plans to investigate this. However, we will continue to monitor the situation."
Smith's father, Daryle Smith, played offensive tackle for the Vols from 1984-86.
School officials have not said how many students they suspect had their grades changed. But according to her attorney, "She shares the Knox County School Board's desire to find out who did it and to correct and remedy the situation."
The school system's human resources department is conducting the investigation. Administrators are interviewing students, administrators and Kallenberg.
If it's determined that Kallenberg may have committed a crime, the case will be turned over to the district attorney general's office for further investigation.
Kallenberg was first hired as an English teacher in 1997. She became the assistant principal at Powell High three years ago.
According to the high school's web site, Kallenberg oversees curriculum development, in-service programs, duty rosters, lockers, bus duty, student parking, bathroom and hall supervision, facilities use, school calendar, staff evaluations and 9th and 11th grade students.
Powell High Principal Diane Psihogios is also on administrative leave with pay. Her leave began the same day as Kallenberg's, on July 14.
School system officials say Psihogios will be reassigned due to the atmosphere in the school, not because of the relationship allegations.
Teachers go back to work in Knox County on August 4. Students begin classes on August 11.