 Complete the following phrase:  Osorio made his debut for El Salvador in an April 1991 UNCAF Nations Cup qualification match against Nicaragua and has earned a total of 67 caps, scoring no goals. Osorio has been a national team stalwart for over 10 years and has represented his country in 18 FIFA World Cup qualification matches over three campaigns and played at the 1991, 1993, 1995, 1997, 