USADA suspends Mirko Cro Cop two years for anti-doping violations http://www.mmamania.com/2015/11/25/9802210/ufc-usada-suspends-mirko-cro-cop-two-years-for-anti-doping-violations-drug-test-mma

Mirko Cro Cop suspended after potential anti-doping violation http://www.foxsports.com/ufc/story/ufc-mirko-cro-cop-suspended-after-potential-anti-doping-violation-111115

St-Pierre: UFC drug test stance influenced exit http://www.espn.co.uk/ufc/sport/story/274005.html