Stefan Koubek

Stefan Koubek (born 2 January 1977) is a retired tennis player from Austria. Koubek played left-handed with a double-handed backhand. His idol when growing up was Thomas Muster. Koubek won three titles, two of which came on hardcourts; despite this, he said his favorite surface was clay. Koubek reached the quarterfinals of the 2002 Australian Open and the 2002 Hamburg Masters, attaining a career-high singles ranking of World No. 20 in March 2000. Koubek tested positive for glucocorticosteroids at the 2004 French Open after receiving an injection for an injured wrist; he was subsequently suspended for three months. His nickname is Cooley or Stef. Tennis career Koubek turned professional in 1994, losing his first match in St Pölten. Between 1994 and 1998, Koubek mostly played in ATP Futures and ATP Challenger Series events.