(Undated)  --  The Portland Timbers selected four players in the MLS SuperDraft on Sunday.  They chose defender Caleb Duvernay and forwards Timmy Mueller, forward Stuart Holthusen and Mamadou Guirassy in the third and fourth rounds.  Mueller logged 23 goals and 10 assists in 67 games at Oregon State.  The Timbers did not pick anyone in the first two rounds.