The high school grades of former Kansas forward Darrell Arthur have been ruled legitimate by an investigation of the Dallas Independent School District.
His grades at South Oak Cliff High School in Dallas were called into question in May when his former teacher claimed he was not passing math as a junior and his grade was changed by school administrators without the teacher's knowledge.
The NCAA said then it would wait until the investigation of the Dallas school district was complete before making any ruling or taking any course of action.
Arthur, who was chosen in the first round of the NBA draft by the Memphis Grizzlies, helped lead the Jayhawks past the Memphis Tigers in the finals of this year's NCAA tournament to win the national championship.
The 6-foot-9 Arthur was second on the Jayhawks in scoring last season at 12.8 points a game and second in rebounding.
"The Office of Professional Responsibility has thoroughly investigated these claims, and it is gratifying to see that administrators, teachers, coaches and student-athletes respected the rules," district superintendent of schools Michael Hinojosa said in a statement released to Dallas media outlets.