Orsanic became a professional tennis player in 1989. In the course of his career, he barely had any notable successes in singles, which is why he specialized in men's doubles. He celebrated his first double title in 1991 in San Luis Potosí at the ATP Challenger Tour tournament there . After another Challenger double title in 1992, he achieved his first victory at an ATP World Tour tournament in 1993 when he won alongside Olli Rahnasto in San Marino . In total, he was able to win eight ATP double titles in the course of his career, the outstanding one being the victory at the ATP International Series Gold tournament in Stuttgart . He also won ten doubles titles on the ATP Challenger Tour, five of them in 1997. He reached the highest ranking in the tennis world rankings in 1993 with position 107 in singles and in 1998 with position 24 in doubles.
After his professional career, he worked as a trainer for Luis Horna , José Acasuso and Pablo Cuevas . In 2007 he was the team principal of the Argentine team at the World Team Cup , which won the event.
From 2014 to 2018 he was the captain of the Argentine Davis Cup team. In 2016, this team won the tournament for the first time in the country's history .