James Blake has long been regarded as one of the most erudite and intelligent of professional tennis players. So when the former U,S. Davis Cup player and world no.4 insists tennis doping is still a major issue in the sport, it is time for the powers that be to take notice. Speaking to USA Today, Blake insisted there are many players on the tours who are still resorting to performance enhancing drugs that are banned but remain undetected.
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