HOW THE 2013 "24 UNDER 24" RANKING WAS DETERMINED

Players who are 23 years old and younger as of the final day of the 2013 MLS season – in this case, MLS Cup on Dec. 7 – were eligible for inclusion. Votes were collected from the MLSsoccer.com editorial staff and various American soccer media members.

The voting panelists rated players based on the following five criteria: