Per Adrian Wojnarowski of ESPN (and confirmed by every major player in the NBA news business), the Clippers have traded Blake Griffin to the Pistons (as well as Willie Reed and Brice Johnson).
In return, the Clippers are receiving Avery Bradley, Tobias Harris, Boban Marjanoic, a 2nd round pick, and a protected 1st round draft pick.
Bradley is a 27 year old shooting guard who is scoring 15 points per game on 40% shooting from the field and 38% from three, and is known as a defensive stopper (though advanced numbers have never liked him).