• The Russian Olympic Committee (ROC) have announced that the retests of B samples of two Russian athletes taken during the 2008 Beijing Olympics Games have returned negative results. After positive A sample test results, the analysis of the B samples from race walker Denis Nizhegorodova and rower Alexander Kornilov revealed ‘no trace of illegal drugs’. The ROC has said that no further disciplinary action will be taken. The Sports Integrity Initiative reported that 14 Russians were among the 31 retrospective positives announced from the International Olympic Committee’s (IOC) retests of 454 ‘selected’ doping A samples taken at the Beijing 2008 Olympics. B sample retesting started last week.

• Russian Olympic high-jumper Anna Chicherova told Russian news agency TASS that retesting of her B sample taken during the 2012 London Olympic Games revealed a negative result. The ROC is yet to confirm this. However the Olympic champion said that retesting of her B sample from the 2008 Beijing Olympics Games was yet to occur, but was scheduled for Wednesday 8 June. Chicherova, alongside Nizhegorodova and Kornilov, was one of the 14 Russians whose A sample from the 2008 Olympics returned positive.

• Sprinter Nesta Carter is reported to be the Jamaican athlete whose A sample from the 2008 Beijing Olympics returned positive for a banned substance. According to Jamaican newspaper The Gleaner, recent retesting of Carter’s sample revealed the presence of the stimulant Methylhexaneamine, which is a banned substance under the World Anti-Doping Code. On Saturday the Jamaica Olympic Association (JOA) released a statement confirming that it had received notification that a Jamaican athlete had returned an adverse analytical result from the retesting of samples. However the JOA said that it could not reveal the identity of the athlete before proceedings have ‘been determined in a hearing’.

• The Supreme People’s Procuratorate, the agency responsible for prosecutions in China, have released a statement confirming that it has filed lawsuits against five senior officials, reports China.org.cn. These include Xiao Tian, the former Deputy Sports Minister, who has been charged with bribery. Tian was fired by the Chinese government in July 2015 following a corruption investigation by the Communist Party. Last month it was revealed that China’s Sports Ministry was being investigated for not doing enough to combat corruption.

• The National Olympic Committee (NOC) of the Republic of Kazakhstan has confirmed that five of its athletes were amongst the 55 who reported an adverse analytical finding (AAF) from re-analysis of 710 samples taken at the Beijing 2008 and London 2012 Olympics. ‘The representatives of the NOC of Kazakhstan are currently in Lausanne (Switzerland), where the opening and investigation of the B sample will take place’, read a statement.  ‘According to IOC regulations, the procedure is confidential until the final test result is disclosed’.

• The World Anti-Doping Agency (WADA) has suspended the accreditation of the Madrid laboratory, a day after it published version 9.0 of its International Standard for Laboratories. WADA said that the decision to suspend the Madrid laboratory was a ‘direct result’ of the 19 March decision to declare the Spanish anti-doping agency (AEPSAD) non-compliant.

• The Federation Internationale Equestre (FEI) has announced that two horses have tested positive for human erythropoietin (EPO). “EPO is well known in human endurance sports in which an increased number of oxygen-carrying red blood cells is an advantage, but the substance has little benefit in equestrian sport and this is the first time we have seen FEI horses testing positive for EPO”, said FEI Veterinary Director Göran Akerström in a statement. “Horses have a large natural reserve of red blood cells stored in their spleen, and the use of EPO would actually have a negative effect in many horses as the increased level of red blood cells would slow down blood circulation”.

• The Union Cycliste Internationale (UCI) has published an updated list of cyclists currently serving a provisional suspension, as of 3 June 2016.

• Dr. Gerardo Werthein, President of the Argentine Olympic committee (COARG), announced that swimmer Martin Carrizo has been provisionally suspended after testing positive for a prohibited substance. Carrizo has been dropped from the Argentine swimming team, having won the 1,500m in order to qualify for the Rio 2016 Olympics at the test event.

• Former Russian Anti-Doping Agency (RUSADA) employee Vitaly Stepanov has told the Washington Post that he passed information on systemic Russian doping to the World Anti-Doping Agency (WADA) in 2010, during the Vancouver Winter Olympics. Stepanov is married to Russian elite 800m runner Yuliya Stepanova, who between them exposed systemic Russian doping in December 2014.

• The Council of the European Union last week adopted principles on enhancing integrity, transparency and good governance in major sport events. Measures have also been proposed to implement these principles at national and European level during all stages of such events (feasibility, bidding, preparation, organisation, evaluation, legacy), including after their closure.

• Kirsan Ilyumzhinov, President of the international chess federation (FIDE), is allegedly linked to a network of offshore companies that have obtained control of the commercial rights to the game, reports The Guardian. FIDE has yet to issue a statement in response to the allegations.

• South Korean police have raided the offices of the country’s national wrestling body on suspicion of embezzlement, reports Yonhap.

• The Office of the Commissioner of Baseball has announced that seven Minor League players have been suspended for violating anti-doping rules. Six players received a 25-game suspension, whilst San Francisco Giants pitcher Alvaro Diaz received a 56-game suspension without pay after testing positive for stanozolol.

• Zimbabwe’s football association (ZIFA) has been dissolved with immediate effect, reports ZimEye. A new football association known as the football association of Zimbabwe (FAZI) will be set up to replace it. ZIFA has recently been hit by match-fixing allegations.