LOS ANGELES (AP) — Shelly Sterling's binding contract to sell the Los Angeles Clippers to former Microsoft CEO Steve Ballmer may be called into question.

Mrs. Sterling says in a statement that she made the $2 billion deal "under her authority as the sole trustee of The Sterling Family Trust, which owns the Clippers."

But attorneys for her estranged husband say Donald Sterling is a co-owner and must agree to the deal.

He was banned from the NBA for life after he was recorded making racist comments.

Copyright 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.