List of doping cases in sport (O)

This is a sub-list from List of doping cases in sport representing a full list of surnames starting with O.

Name	Country	Event	Banned substance(s)	Reference(s)
Kirk O'Bee	United States	Cycling	Testosterone	[1]
Chiedozie Offiah	United Kingdom	Basketball	Test tampering	[2]
Stuart O'Grady	Australia	Cycling	EPO (Self admit)	[3]
Reza Ojagh	Iran	Swimming	Nandrolone	[4]
Mirela Olczak	Poland	Swimming	Methylhexaneamine	[5]
Olena Olefirenko	Ukraine	Rowing		[6]
Ruslan Oleksenko	Ukraine	Wrestling	THC	[7]
Andrey Oleynik	Ukraine	Swimming	Cannabis	[8]
Jacques Oliger	Chile	Weightlifting		[9]
Achiliev Olimbeck	United Arab Emirates	Weightlifting	Metandienone	[10]
Victor Felipe Silveira Oliveira	Brazil	Volleyball	Steroids	[11]
Larry Olubamiwu	United Kingdom	Boxing		[12]
Naiij Omid	Iran	Weightlifting	Metandienone	[10]
Esther Omosehin	Nigeria	Swimming	Ephedrine	[13]
Nathan O'Neill	Australia	Cycling	Phentermine	[14]
Elizabeth Onuah	Nigeria	Weightlifting	Hydrochlorothiazide, Amiloride	[10]
Oo Mya Sanda	Myanmar	Weightlifting	Metabolite	[15]
Niusila Opeloge	Samoa	Weightlifting		[10]
David Ortiz	Dominican Republic	Baseball		[16]
Omar Ortiz	Mexico	Football (soccer)	Oxymetholone, masteron	[17]
Michal Orzechowski	Poland	Wrestling	THC	[7]
Ronnie O'Sullivan	England	Snooker	Cannabis	[18]
Bilal Othman	Syria	Weightlifting		[10]
Bilikis Otunla	Nigeria	Weightlifting	Nandrolone	[10]
Ouyang Kunpeng	China	Swimming	Clenbuterol	[19]
Artem Ovechkin	Russia	Cycling		[20]
Alistair Overeem	Netherlands	MMA and Kickboxing	Testosterone- Epitestosterone	[21]
Mita Overvliet	Netherlands	Weightlifting	Norandrosterone, Furosemide	[10]

References

1. "USADA - What We Do: Results Management - Sanctions". Usantidoping.org. Archived from the original on January 27, 2010. Retrieved 2012-07-24.
2. 120725 14/08/12 UK Anti-Doping vs Kofi Danso & Chiedozie Offiah
3. "Stuart O'Grady admits to doping before the 1998 Tour de France". ABC News (Australia). Retrieved 2013-11-11.
4. "Three Swimmers Banned by FINA for Drug Violations". Swimmingworldmagazine.com. Archived from the original on 2013-01-05. Retrieved 2012-07-24.
5. 2011 Doping Cases Report.
6. "Doping cases at the Athens Games - Olympic news- nbcsports.msnbc.com". MSNBC. 2004-08-29. Archived from the original on 2013-01-04. Retrieved 2012-07-24.
7. Sanctions for doping & Disciplinary sanctions.
8. "FINA DOPING PANEL DECISION". Archived from the original on 2005-10-17. Retrieved 2013-08-20.
9. "11 Lifters Banned From Olympics". The New York Times. 1983-10-23. Archived from the original on 2012-06-30. Retrieved 2010-05-08.
10. Sanctioned athletes.
11. 2009-2011 Anti-Doping Rule Violations.
12. Boxer Craig Windsor banned from the sport for three years after admitting to steroid use
13. 2006 Doping Cases Report
14. "www.cyclingnews.com - the world centre of cycling". Autobus.cyclingnews.com. Archived from the original on 2012-07-01. Retrieved 2012-07-24.
15. "Xinhuanet - English". News.xinhuanet.com. Archived from the original on 2012-06-30. Retrieved 2012-07-24.
16. Press, Associated (2009-07-31). "David Ortiz failed drug test". BostonHerald.com. Archived from the original on 2012-06-30. Retrieved 2012-07-17.
17. "Mexican goalkeeper banned for two years". FourFourTwo. 2010-05-10. Archived from the original on 2012-07-12. Retrieved 2012-07-17.
18. "Bad Boys: Ronnie O'Sullivan". BBC News. 2003-05-07. Archived from the original on 2012-06-30. Retrieved 2010-05-08.
19. http://canadianpress.google.com/article/ALeqM5g525WR5B_vavIuSs3uUS97D5_9qA. Retrieved November 15, 2013. Missing or empty |title= (help)
20. Rusvelo team hit by three positive tests at Russian national championships.
21. "Alistair Overeem Tests Positive For Steroids; Dana White Furious". Fightofthenight.Com. 2012-04-04. Archived from the original on 2013-01-23. Retrieved 2012-07-24.