Complex sentence: In May 2007 Almirante Brown became champions of the Primera B Metropolitana Clausura tournament by beating Estudiantes de Buenos Aires in the final, the fixture was marred by violence and Almirante Brown were forced to start the following season in B Nacional with -18 points as punishment.
Split into simpler sentences: In May 2007 Almirante Brown became Primera B Metropolitana Clausura champion, after beating Estudiantes de Buenos Aires in the final match. The fixture was marred by violence and Almirante Brown was forced to start the following season in B Nacional with -18 points as punishment.