Complex sentence: He was selected for the 2008 OFC Men's Olympic Football Tournament to help New Zealand qualify for the 2008 Beijing Olympics and scored four goals in the five pool matches, however he was not selected for New Zealand's final squad to travel to the Olympic Games.
Split into simpler sentences: He was selected for the 2008 OFC Men's Olympic Football Tournament to help New Zealand qualify for the 2008 Beijing Olympics. Although he scored four goals in the five pool matches Barbarouses was not selected for the final squad to travel to the Olympic Games.