Carlos Humberto Ruiz Gutiérrez (born 15 September 1979), initially nicknamed "El Pescadito" ("The Little Fish") but gradually known as just "Pescado" or "Fish" (even by Spanish-speakers), is a retired Guatemalan footballer. A product of CSD Municipal's youth academy, Ruiz has played for five MLS clubs (Los Angeles Galaxy, FC Dallas, Toronto FC, Philadelphia Union, and D.C. United), scoring 88 goals in 182 MLS regular-season matches and 16 goals in the post-season, which is the record for the most post-season goals in MLS history. In 2002, he was named the MLS's Most Valuable Player of the season.