PARIS: Katusha have joined Orica in quitting the anti-doping body the Movement for Credible Cycling so as to avoid suspension after two of its riders failed drug tests. The Russian cycling team were told by the International Cycling Union this month that they would not be banned despite Katusha duo Eduard Vorganov and Luca Paolini failing doping controls. But under MPCC rules Katusha would have been obliged to impose a ban themselves. Katusha this month suspended Russian rider Eduard Vorganov after he tested positive for the Latvian-made anti-ischemia drug meldonium, which boosts oxygen supply to the blood and tissues in the body. That came only seven months after Italian Luca Paolini was kicked out of the Tour de France after testing positive for cocaine.