UPDATE: From ESPN.com's Marc Stein: "Sources told ESPN.com that Jermaine O'Neal ... is 'highly intrigued' by the idea of joining the Mavericks as a free agent in the wake of the Rondo deal."

Other teams watching O'Neal are Cleveland, Golden State and LA Clippers.

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The Dallas Mavericks acquired Rajon Rondo Thursday night which upgraded the point guard position, but the deal left them vulnerable in the frontcourt as backup center/forward Brandan Wright was part of the package going to the Boston Celtics.