Out of those 13 won medals at the Games in Hyderabad.
Former 100 metres world record holder Asafa Powell was banned for 18 months by a Jamaican anti-doping disciplinary panel on Thursday after he tested positive for a banned substance last year.
Commonwealth Games gold medallist weightlifter Geeta Rani's confirmatory 'B' sample test has also returned positive for a banned substance and she is set to end her career in ignominy as she faces the prospect of a lengthy ban from the sport.
In the wake of the doping bans imposed on Shoaib Akhtar and Mohammad Asif, the PCB will conduct a review of central contracts awarded to players.
Nike Inc shut down its Nike Oregon Project training group on Thursday, following the recent four-year ban of founder and coach Alberto Salazar by the US Anti-Doping Agency.
World Anti-Doping Agency chairman Dick Pound has criticised the decision to allow Australia leg spinner Shane Warne to play in charity matches during a one-year doping ban.
Olympic champion Leisel Jones and former world champion Geoff Huegill will lead a 52-strong Australian swimming contingent, including 31 debutants, in the Delhi Commonwealth Games this October.
Alberto Contador's Saxo Bank-Sungard team could be thrown out of cycling's World Tour after the Spaniard was given a two-year doping ban by the Court of Arbitration for Sport, the International Cycling Union (UCI) said on Friday.
Commonwealth Games women's 100 metres gold medallist has tested positive for a banned stimulant, Games Federation chief Mike Fennell said on Monday. Oludamola's sample contained the banned stimulant methylhexaneamine, which was added to the World Anti Doping Agency's (WADA) list of banned substances for the first time this year.
Yulia Stepanova, an international runner who was herself suspended for doping offences, and her husband Vitaly, a former Russian anti-doping agency official, secretly recorded Russian coaches and athletes over almost two years describing how they used performance-enhancing drugs.
Moroccan 1,500 meters runner Amine Laalou has not run in his heat at the London Olympics, and was reported to have tested positive for doping.
Match-fixing has become increasingly pervasive in recent years across a number of sports.
Jamaica's 200 metres world champion Veronica Campbell-Brown has tested positive for a banned diuretic, sources close to Jamaican athletics said.
Russia's exclusion from next month's Paralympic Games in Rio is a different situation from the IOC's decision to allow some Russian competitors to take part at the Olympics, International Olympic Committee President Thomas Bach said on Monday.
Russell, a two-time Twenty20 World Cup winner, was revealed to have committed the violation a year ago after registering three filing failures in 2015. That constituted a failed drugs test under World Anti-Doping Agency (WADA) rules.
The Court of Arbitration for Sport has cleared the way for former Olympic swimming champion Park Tae-hwan to compete at the Rio Games after upholding his appeal against a Korean Olympic Committee doping ban, Yonhap news reported on Friday.
In a double jolt for Indian boxing, middle-weight pugilist Manjit Singh has been suspended for two years after failing a dope test while fellow glovesman Baljeet Singh's 'A' sample has also tested positive.
A low-down on the eight runners -- four men and four women -- who finished second in their qualifying heats to make the Olympic cut.
Justin Gatlin won his first title since returning from a four-year doping ban with victory in the 60 metres at the world indoor championships on Saturday as the red-hot Americans grabbed four gold medals and a world record in Istanbul.
UK Anti-Doping (UKAD) said it was "deeply concerned and shocked" by a Sunday Times report in which a British doctor alleged he had prescribed banned performance-enhancing drugs to 150 sportsmen including several Premier League footballers.
Tokyo-bound Indian wrestler Bajrang Punia pulled off a two-pointer in the last 30 seconds of the gold medal bout to defend his title at the Matteo Pellicone Ranking Series event in Rome.
Russians, Belarusians to participate at Paris Olympics as neutrals
'He (Prithvi) is a fighter and will definitely come out of it. He has worked hard (to reach the top)'
Athletics Federation of India's plan to include dope-tainted Ashwini Akkunji in the women's 4x400m relay team in the ongoing Asian Championships was nixed by the competition technical delegate on the ground that it would violate IAAF rules.
Russian former world number one Maria Sharapova was suspended for two years by the International Tennis Federation on Wednesday following her positive test for banned drug meldonium at this year's Australian Open.
The case is closed after WADA said it would take the matter to the Court of Arbitration for Sport.
Former world and Olympic champions Svetlana Krivelyova and Olga Kuzenkova have been banned for two years each for failing drugs tests after their samples were re-examined, the Russian athletics federation (VFLA) said on Tuesday.
Russia has lost its appeal against its ban from next month's Rio Paralympics because of a state-sponsored doping programme, the Court of Arbitration for Sport (CAS), sports highest tribunal, said on Tuesday. The decision to exclude Russia's entire Paralympics team, initially made on Aug. 7 by the International Paralympic Committee (IPC), means at least 250 Russian competitors are set to miss the Sept. 7-18 event.
Summary of sports events and persons who made news on Saturday.
Russia's men's quadruple sculls crew have been banned from the Rio Olympics after one of their members failed a doping test in May, the world governing body FISA said on Friday.
Sharapova, making her return to top-flight tennis after serving a doping ban, defeated Romanian Halep 6-4, 4-6, 6-3 to move into the 2nd round of the final major of the year.
The lawyer for suspended Pakistan fast bowler Mohammad Asif has asked for his appeal against a positive doping test to be set for the earliest possible date.
The suspense over wrestler Narsingh Yadav's participation in the Rio Olympic Games was prolonged further after the National Anti-Doping Agency deferred its final verdict on the doping scandal to Monday.
Commonwealth Games Federation chief Michael Fennell said on Tuesday that the two positive doping tests of the Nigerian athletes could be related to use of supplements.
Yulia Stepanova, the key whistleblower in the Russian doping scandal that almost led to her country being completely excluded from the Rio de Janeiro Games, will miss the Olympics after the runner was controversially ruled out due to her doping past.
The World Anti-Doping Agency (WADA) on Wednesday defended the Therapeutic Use Exemption (TUE) system after some athletes' confidential medical data was leaked by a group of Russian hackers, shedding light on potential abuse.
Eight years after winning Olympic gold and two years after concluding a doping ban, Justin Gatlin secured his return to the Games by running an eye-catching 9.80 seconds to win the 100 metres at the US Olympic trials on Sunday.
Unheralded Atish Todkar caused a huge upset by knocking out Olympic silver medallist Ravi Dahiya with a sensational 'pin'.
Olympic and world 400 metres champion LaShawn Merritt has failed three doping tests for a banned substance and accepted a provisional suspension, his lawyer said on Thursday.
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