Stefan Koubek is a retired tennis player from Austria.
His main and rather the only source of income is a professional career as a tennis player which brings him great profits.
Koubek used a double-handed backhand and played with his left hand. Growing up, Thomas Muster was his hero. D
espite having won three titles, including two on hardcourts, Koubek claimed that clay was his preferred playing surface.
Koubek had a career-high singles rating of World No. 20 in March 2000. He also advanced to the quarterfinals of the 2002 Australian Open and the 2002 Hamburg Masters.
Following an injection for a wrist injury, Koubek tested positive for glucocorticosteroids at the 2004 French Open. He was consequently suspended for three months.
Stefan Koubek's net worth is currently estimated at $3.4 million.
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