Well, this Mets Blogger’s All Mexico Team:

Starting Rotation
Oliver Pérez (N.Y. Mets)
Luis Ayala (Washington)
Esteban Loaiza (Oakland)
Rodrigo López (Colorado)
Jorge de la Rosa (Kansas City)

Bullpen
Dennys Reyes (Minnesota)
Ricardo Rincón (St. Louis)
Elmer Dessens (L.A. Dodgers)
Oscar Villareal (Atlanta)
Edgar González (Arizona)
Jorge Campillo (Seattle)
David Cortés (San Francisco)
Ismael Valdéz (last played w/ Florida in ’05)

Infield
Miguel Ojeda, C (Texas)
Erubiel Durazo, 1B (Oakland)
Jorge Cantu, 2B (Tampa Bay)
Juan Castro, SS (Cincinnati)
Oscar Robles, 3B (San Diego spring training invitee)

Outfield
Benji Gil, LF (last played for Anaheim in ’03; 1 career game in CF)
Alfredo Amézaga, CF (Florida) (75 career G at CF, 14 in LF, 2 in RF)
Karim Garcia, RF (Philadelphia spring training invitee)

Bench
Vinny Castilla, 3B (Colorado; just retired)
Gabe Alvarez, IF/OF (San Diego; last played in ’00)
Humberto Cota, C (Pittsburgh)
Geronimo Gil, C (Baltimore; last played in ’05) (PLAYER/MANAGER)

I for one did not realize Benji Gil was from Mexico, by the way. Here’s a list of Mexican born players (sorted by debut) And, in case you’re wondering, the first Mexican born player in the majors was Mel Almada, a left handed outfielder who played from 1933 to 1939 and finished with a .285 career average.

Also, for your reference, here is the roster of the 2006 Mexican team from last year’s WBC.