Jose Ernesto Sosa is an Argentine football player who currently features for the Italian club Napoli. He plays as an attacking midfielder.
Sosa developed at the youth academy of Argentine club Estudiantes and made his first team debut in 2002. He played for the Argentine club until 2007, establishing himself as one of the best attacking medios in Argentina.
Sosa helped Estudiantes won the league for the first time since 1983 and scored against Boca Juniors in the final playoff game against Apertura in 2006.
In February 2007 Bayern Munich signed Jose Sosa but Sosa stayed with Estudiantes for the remainder of the Clausura 2007 season. He played for Bayern in the 2008-2009 season.
In 2010 Sosa was signed by Napoli.