The 2007 MLS supplemental draft was held on January 18, 2007, following the SuperDraft (held on January 12, 2007), as teams filled out their developmental rosters.
^#2: Pick originally belonged to Columbus Crew → Real Salt Lake. → Chivas USA....On 24 May 2006, Real Salt Lake had acquired this first-round pick and forward Duke Hashimoto from Columbus Crew in exchange for goalkeeper Noah Palmer.[ref 1]More information needed.
^#4: Real Salt Lake → Colorado Rapids. 29 June 2005: Colorado Rapids acquired this first-round selection and a permanent international roster spot from Real Salt Lake in exchange for midfielder Adolfo Gregorio.[ref 2]
^#7: Chivas USA → Chicago Fire. 24 January 2006: Chicago Fire acquired this first-round selection from Chivas USA in exchange for defender Jesse Marsch.[ref 3]
^#10: Colorado Rapids → Los Angeles Galaxy. 8 February 2006: Los Angeles Galaxy acquired this first-round selection from Colorado Rapids in exchange for forward Aaron King.[ref 4]
^#22: FC Dallas → Los Angeles Galaxy. 19 July 2006: Los Angeles Galaxy acquired this second-round selection from FC Dallas in exchange for midfielder Marcelo Saragosa.[ref 5]
^#23: Colorado Rapids → Columbus Crew. 9 March 2005: Columbus Crew acquired this second-round selection from Colorado Rapids in exchange for midfielder Martín Morales and forward Luchi Gonzalez.[ref 6]
^#24: D.C. United → Chivas USA. 8 March 2005: Chivas USA acquired this second-round selection from D.C. United in exchange for forward Jamil Walker.[ref 7]
^#26: Houston Dynamo → Columbus Crew → Los Angeles Galaxy. 11 July 2006: Los Angeles Galaxy acquired this second-round selection from Columbus Crew in exchange for forward Marc Burch.[ref 8] On 16 February 2006, Columbus had acquired this second-round pick from Houston Dynamo in exchange for midfielder Marcus Storey.[ref 9]
^#28: Columbus Crew → Real Salt Lake. 22 February 2006: Real Salt Lake acquired this third-round selection from Columbus Crew in exchange for defender Rusty Pierce.[ref 10]
^#30: Real Salt Lake → Kansas City Wizards. 17 November 2005: Kansas City Wizards acquired this third-round selection from Real Salt Lake in exchange for midfielder Diego Walsh.[ref 11]
^#31: Los Angeles Galaxy → Chivas USA. 27 February 2006: Chivas USA acquired this third-round selection from Los Angeles Galaxy in exchange for defender Brian Dunseth.[ref 12]
^#32: New York Red Bulls → Kansas City Wizards. 11 January 2007: Kansas City Wizards acquired this third-round selection from New York Red Bulls in exchange for midfielder Dave van den Bergh.[ref 13]
^#35: FC Dallas → Colorado Rapids. 14 February 2006: Colorado acquired this pick and a third-round selection in the 2007 MLS SuperDraft from FC Dallas in exchange for the use of a Youth International slot in 2006.[ref 14]
'^#42: Pick originally belonged to Kansas City Wizards. → Houston Dynamo.
^#45: New York Red Bulls → FC Dallas. 2 March 2006: FC Dallas acquired this fourth-round selection from New York Red Bulls in exchange for defender Steve Jolley.[ref 15]
^#46: Chivas USA → New York Red Bulls. 12 January 2007: New York Red Bulls acquired this fourth-round selection from Chivas USA in exchange for forward David Arvizu.[ref 16]
^#48: FC Dallas → Kansas City Wizards. 19 July 2006: Kansas City Wizards acquired this fourth-round selection from FC Dallas in exchange for forward Alex Smith.[ref 17]
^#49: Colorado Rapids → Real Salt Lake. 15 August 2006: Real Salt Lake acquired this fourth-round selection from Colorado Rapids in exchange for forward Melvin Tarley.[ref 18]
^#50: D.C. United. → Columbus Crew. 14 March 2006: Columbus Crew acquired this fourth-round selection from D.C. United in exchange for defender Domenic Mediate.[ref 19]
'^#52: Pick originally belonged to Houston Dynamo. → Kansas City Wizards.