[DATEBOOK] Such is the popularity of Mexican soccer in the Bay Area that the Mexico U-23 national team's match against Australia on Sunday afternoon at the McAfee Coliseum in Oakland, Calif., is already a sellout.

The Tri U-23s are preparing for the start of Olympic qualifying in the Concacaf region next month. They are coming off a 0-0 tie with Paraguay's U-23s on Wednesday before a sellout crowd of 13,000 at the new Estadio Caliente in Tijuana.

Fans showed their displeasure with the performance of Coach Hugo Sanchez's team by shouting "La Volpe, La Volpe," in reference to Ricardo La Volpe, Sanchez's predecessor.

Goalkeeper Guillermo Ochoa (Club America) is the big Mexico star on Sanchez's U-23s. Other national team players such as Spanish-based Giovani dos Santos, Carlos Vela and Andres Guardado were not called in for Concacaf qualifying.

The match will mark Mexico's return to McAfee Coliseum in a bit more than a year when the full Mexican national team defeated Ecuador, 4-2, in front of a sold-out crowd of 47,416.