A person with knowledge of the decision says the Big 12 has approved West Virginia to replace Missouri when the Tigers complete their move to the Southeastern Conference.
The person spoke to The Associated Press on condition of anonymity Tuesday because neither the school nor the Big 12 had announced it.
West Virginia's move would allow the Big 12 to maintain 10 members and is another blow to the embattled Big East, which already has lost two members and one member-to-be in the last six weeks.
The Big East is trying to reconfigure as a 12-team football league and is courting Boise State, Navy, Air Force, Central Florida, SMU and Houston. Commissioner John Marinatto met with officials from some of those schools Sunday in Washington.