Career
He is also the younger brother of Werder Bremen striker Claudio Pizarro. Diego developed as football player within Bayern Munich"s youth academy. On August 31, 2009, it was announced that he joined Peruvian club Coronel Bolognesi for the last part of the 2009 Descentralizado season.
However he did not manage to play for Bolognesi as he suffered an injury that kept him from making his debut.
At the end of the 2009 season Bolognesi was relegated to the second division. In January 2010, he signed for Peruvian club Sport Boys Association for the start of the 2010 Descentralizado season.
Diego made his professional debut in the Peruvian First Division on May 29, 2010 in an away match against José Gálvez FBC. He entered the match in the 73rd minute replacing Miguel Curiel. That season Diego mainly played for the Sport Boys reserve team and finished as the top goal scorer for his team in the 2010 Torneo de Promociónew york Reserva with 9 goals.
On January 31, 2011, it was announced that Diego joined Peruvian club Colegio Nacional de Iquitos for the start of the 2011 Descentralizado season.