Career
Arnold was ranked as high as ninth during his junior career, which included winning the South American Championships in the 14s and 16s categories, in 1985 and 1987, as well as the Banana Bowl in 1989. The Argentine went to college in the United States, firstly at the University of Georgia, where he played collegiate tennis in 1990 and 1991, reaching the final of the National Collegiate Athletic Association Men"s Tennis Championship final in the last of those years. He then transferred to the University of South Florida.
In 1991, on his Association of Tennis Professionals Tour debut, Arnold upset world number 51 Amos Mansdorf at Long Island"s Norstar Bank Hamlet Challenge Cup.
He made his first Grand Slam appearance at the 1994 French Open and lost his opening match in five sets, to Jonas Björkman, 7-9 in the fifth. Also that year, Arnold made two further doubles semi-finals, in San Marino with Luis Lobo and again with Orsanic at Buenos Aires.
He lost in four sets. In the 1995 French Open he teamed up with Orsanic but the pair were unable to progress past Byron Black and Jonathan Stark in the first round.
Doubles: (6).
