Bayern Munich have completed the signing of young Argentine midfielder Jose Ernesto Sosa from Estudiantes de La Plata for an undisclosed fee, the Bavarian giants said on Tuesday. The 21-year old has signed a four-year contract with Bayern after successfully passing a medical on Monday. "I'm delighted I have finally arrived here at Bayern. It's a dream move for any player," Sosa was quoted as saying by Bayern's official site. "Bayern are one of the best clubs in the world, a huge name with an outstanding team. Sosa has also revealed his excitement after receiving a call up for the Argentinean national team for the first time this week. "I've passed two career milestones in the space of a week," he said. Sosa became Bayern's third signing for the new season after sealing moves for Jan Schlaudraff and Hamit Altintop.