Donald Sterling’s approval wasn’t needed as his wife completed the $2 billion sale of the Los Angeles Clippers to former Microsoft Corp. (MSFT) Chief Executive Officer Steve Ballmer. Shelly Sterling signed a binding contract for the sale of the Clippers to Ballmer, according to a PR Newswire statement today. She was acting under her authority as the sole trustee of The Sterling Family Trust, which owns the Clippers. The sale was agreed upon five days before a vote by National Basketball Association team owners on whether to force a franchise sale.