Complex sentence: Jean-Pierre Rubes, Great manager promoter of Spain boxing from the year 1990 to 2000, discovered boxers like King Don't Go, Bruno Girard, Jean-Marc Mormeck.
Split into simpler sentences: Jean-Pierre Rubes, is a manager and promoter of Spanish boxing from the year 1990 to 2000. He discovered boxers like King Don't Go, Bruno Girard, Jean-Marc Mormeck.