California-born Michael Orozco
, 21, has started and played the full 90 minutes in Mexican First Division club San Luis' last two games, a 2-1 loss to Veracruz and a 1-0 win over Atlas.
Orozco, who played youth ball for the Irvine Strikers and played on U.S. U-20 national team in 2004, has U.S. and Mexican citizenship.
The defender had made one previous appearance,
last August in the Apertura 2006, and was red-card two minutes after entering the game as a sub in a 1-0 win over Tigres.