There has been a 3-way trade:
Hawks trade: Ike Diogu and 12th round (23)
Spurs trade: Sean May
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Spurs trade: Jeff Green, Ike Diogu, Mario Chalmers, Brook Lopez, 12th round (1), and 13th round (13)
Heat trade: Peja Stojakovic, Ben Wallace, Gerald Green, Steve Francis, and 12th round (11)