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.

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| Denotes player who has been selected for an MLS Best XI team

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February 28, 2003 Supplemental Draft

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!style="background:#A8BDEC;" width=6%| Pick # !!width=25% style="background:#A8BDEC;"| Drafting Team !!width=15% style="background:#A8BDEC;"| Player !!width=8% style="background:#A8BDEC;"| Pos !!width=25% style="background:#A8BDEC;"| Former Team

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! 1

| San Jose Earthquakes