Before the 2003 season, Major League Soccer held Supplemental Drafts, in which players who had signed with the league after the 2003 MLS SuperDraft were made available for selection.
*
Denotes player who has been selected for an MLS Best XI team
^#1: D.C. United → San Jose Earthquakes. 11 February 2003: San Jose Earthquakes acquired the #1 selection in the February 28, 2003 Supplemental Draft and a fourth-round pick (#48), originally a conditional selection, in the 2005 MLS SuperDraft from D.C. United in exchange for the #6 selection in the February 28, 2003 Supplemental Draft and forward Devin Barclay.[ref 1]
^#6: San Jose Earthquakes → D.C. United. 11 February 2003: D.C. United acquired the #6 selection in the February 28, 2003 Supplemental Draft and forward Devin Barclay from San Jose Earthquakes in exchange for the #1 selection in the February 28, 2003 Supplemental Draft and a fourth-round pick (#48), originally a conditional selection, in the 2005 MLS SuperDraft.[ref 1]