The Seattle SuperSonics’ former owners sued Tuesday to have the 2006 sale of the team voided. They are asking a federal judge to order the Oklahoma-based owners to sell the team “to an honest buyer who desires to keep the Sonics in Seattle.” The 13-page lawsuit was filed late Tuesday in Seattle. It is the latest legal roadblock to the current owners’ efforts to move the team to Oklahoma City. NBA owners Friday approved the relocation 28-2. The former owners are led by Howard Schultz, the founder of Starbucks, the famous coffee chain. The former owners contend they sold in 2006 only because they were persuaded the new owners wanted to keep the team in Seattle. The lawsuit alleges: “These Oklahoma City businessmen wanted a team that would play in Oklahoma City — not in Seattle. They were willing to lie, and did lie, to complete the deal.” Sonics Chairman Clay Bennett has said he acted in good faith in efforts to keep the Sonics in Washington. He said Friday he was disappointed Schultz was planning to sue. “I was disappointed because I've had a nice relationship with Howard, and I have not spoken with him about this ... issue. ... I made a commitment to him personally, as well, that was meaningful to me and I hail to that commitment,” Bennett said Friday. An attorney for the current owners, as well as a spokesman, would not comment Tuesday night on the lawsuit. The current owners already face a federal trial in Seattle on June 16. The city of Seattle is trying to force them to play in Seattle for two more years, the length of the team's lease at KeyArena. The former owners point to e-mails as proof they were lied to. In one e-mail, the lawsuit alleges, Bennett “confided” to his co-owners two days before the sale that the Oklahoma City group could sell the team in a “sweet flip” if a new arena in Washington was approved. Bennett wrote the Oklahoma City group “would still be in good shape for something in OKC,” according to the lawsuit. Bennett already has said some of his e-mails have been misconstrued.