Li Na is China 's first top 10 tennis player , often portrayed as a rebel . She has been banned from playing for two years after testing positive for the stimulant nandrolone in 2009 and was stripped of her ranking points. In winter training I was with the national team , so I saw a lot of good players among juniors -- young girls and boys . Quit tennis at end of 2002 , but returned in 2004 and has risen up rankings since .
Li Na is China 's first top 10 tennis player , often portrayed as a rebel . She has been banned from playing for two years after testing positive for the stimulant nandrolone in 2009 and was stripped of her ranking points. Quit tennis at end of 2002 , but returned in 2004 and has risen up rankings since .