 Complete the following phrase:  The Paralympics have also been tainted by steroid use. At the 2008 Games in Beijing, three powerlifters and a German basketball player were banned after having tested positive for banned substances. This was a decrease in comparison to the ten powerlifters and one track athlete who were banned from the 2000 Games. German skier Thomas Oelsner became the first Winter Paralympian to test positive for steroids. He had won two gold medals at the 