The first round of the WBC commenced Mexico City on 8 March 2009 , a month after the final round .
The competition served as the primary selection trial for the national team to compete in the 2009 World Baseball Classic .
The first round of the World Baseball Classic commenced Mexico City on 8 March 2009 , a month after the final round .
The competition served as the primary selection trial for the national team to compete in the 2009 World Baseball Classic .