"The NCAA has alerted us to an issue that could affect Cliff's eligibility," Kansas athletic director Sheahon Zenger said in a statement. "As a precautionary measure, Cliff will not take the court until we have resolved the issue."
Alexander was a heralded player entering the program this season, but has not lived up to the expectations. The 6-foot-8 Chicago native is averaging 7.1 points and 5.3 rebounds in 17.6 minutes per game this season.
Alexander only played 10 minutes in Monday's loss at Kansas State and was held scoreless.