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His career began in Argentina with Club Atlético Independiente (1920–1928; 1935), but it was with Juventus that Orsi would have the most success in his club career. He joined the club in time for the 1928–29 season and would stay at Juventus until 1935, winning five consecutive league titles between 1931 and 1935. After leaving Italy, Orsi played the rest of his career in South America. He returned to Independiente before moving on to Boca Juniors (1936), Club Atlético Platense (1937–38), and Almagro (1939–40); he also played for Flamengo in Brazil (1939; 1940), Peñarol in Uruguay (1941–42), and Santiago National in Chile (1943).
International career
His international debut for Argentina on August 10, 1924, was against Uruguay. Over the next 12 years, he played 13 times for Argentina and scored 3 goals, winning the 1927 Copa América and the silver medal at the 1928 Summer Olympics in Amsterdam, Netherlands. Orsi's career is strange by modern standards, however, in that he played for Italy as well as Argentina, allowing him to gain 35 caps and score 13 goals for his second country between December 1, 1929, and March 24, 1935. This also allowed him to win two editions of the Central European International Cup, and to be a part of the side that won the 1934 FIFA World Cup, in the final of which he scored. He died in 1986 aged 84.
Style of play
Considered one of the greatest players of his time, and one of the best ever Italian players in his position, Orsi was a quick left-footed winger, who usually played on the left flank, due to his crossing ability. A prolific goalscorer, he was an accurate finisher, both with his head and his feet, and he excelled in the air and acrobatically; because of this he was also capable of playing as a striker, and on the right flank, a position in which he was able to make diagonal attacking runs or cut into the centre to shoot with his stronger foot. Nicknamed "Mumo", despite his lack of shooting power and physical strength, he was an extremely quick player, with excellent technical ability, who was renowned for his dribbling skills and his use of feints to beat opponents. He was also an accurate penalty kick taker.
Chiesa, Carlo F. (22 August 1999). "We are the champions - I 150 fuoriclasse che hanno fatto la storia del calcio" [The 150 champions that made football's history]. Calcio 2000 (in Italian). Action Group S.r.l. p. 124.