List of doping cases in sport (G)

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

Name	Country	Event	Banned substance(s)	Reference(s)
Mohammed Gaber	Egypt	Weightlifting		[1]
Ivailo Gabrovski	Bulgaria	Cycling	EPO	[2]
Al-Saadi Gaddafi	Libya	Football (soccer)	Nandrolone	[3]
Éric Gagné	Canada	Baseball	Human growth hormone	[4]
Alexander Gaidukov	Russia	Water polo	Carphedon	[5]
Martin Galia	Slovenia	Handball	Octopamine	[6]
Aaron Galindo	Mexico	Football (soccer)	Nandrolone	[7]
Luiza Galiulina	Uzbekistan	Gymnastics	Furosemide	[8]
Freddy Galvis	Venezuela	Baseball	Clostebol	[9]
Eddie Gamboa	United States	Baseball	Testosterone	[10]
Gao Yanzhi	China	Weightlifting		[11]
Ricky Garard	Australia	CrossFit	GW501516, Vosilasarm	[12]
Ismael Garcia Bravo	Spain	Swimming	Ephedrine	[13]
Sergio Garcia Ortiz	Spain	Swimming		[14]
Juan Garriga	Spain	Motorcycle racing	(never sanctioned; admitted to use after the end of his career)	[15]
Lukasz Gasior	Poland	Swimming	Cannabis	[16]
Richard Gasquet	France	Tennis	Cocaine (later forgiven by the excuse that he kissed a girl who used cocaine)	[17]
Stefano Garzelli	Italy	Cycling	Probenecid	[18]
Philippe Gaumont	France	Cycling	Erythropoietin (EPO) (self-admitted)	[19]
Michael Gausman	United States	Swimming	Cannabinoids	[20]
Vikas Singh Gautam	France	Volleyball	Steroids	[21]
Anzhelika Gavrilova	Kazakhstan	Speed skating	Clenbuterol	[22]
Steve Geltz	United States	Baseball	Non-performance-enhancing drug	[23][24]
Pauline Gendrier	France	Volleyball	Cocaine	[21]
Ivan Gertlein	Russia	Pole vaulting	DHEA	[25]
Sylvain Georges	France	Cycling	Heptaminol	[26]
Tihomir Georgiev	Bulgaria	Volleyball	Cannabinoids	[27]
Amanda Gerhart	Canada	Wrestling	Refusal to submit to doping test	[28]
Dinko Geshev	Poland	Swimming	Cannabis	[29]
Ute Geweniger	East Germany	Swimming	Turinabol (self-admitted)	[30]
Alireza Gharibi	Iran	Wrestling	D-methamphetamine	[31]
Jason Giambi	United States	Baseball	Human growth hormone, steroids (self-admitted)	[32][33]
Jeremy Giambi	United States	Baseball	Human growth hormone, steroids (self-admitted)	[32][34]
Jay Gibbons	United States	Baseball	Growth hormone	[35]
Lewis Gibbons	United Kingdom	Football (soccer)	Benzoylecgonine, cannabis	[36]
Jack Gibbs	United Kingdom	Wheelchair basketball		[37]
Monica Gibellini	Italy	Water polo	Cannabinoids	[20]
Ed Giddins	England	Cricket	Cocaine	[38]
Lukasz Giminski	Poland	Swimming		[14]
Felice Gimondi	Italy	Cycling		[39]
Everton Giovanella	Brazil	Football (soccer)		[40]
Christopher Girard	Canada	Water polo	Cannabis	[41]
Mads Glaesner	Denmark	Swimming	Levomethamphetamine	[42]
Martin Gleeson	United Kingdom	Rugby	Methylhexaneamine	[43]
Josh Glenn	Australia	Australian rules football	19-Norandrosterone, 19-Noretiocholanolone	[44]
Ekaterina Gnidenko	Russia	Cycling	Dehydrochlormethyltestosterone (Turinabol)	[45]
Anthony Gobert	Australia	Motorcycle racing	Cannabis (Not sanctioned for first offence, but was released from contract by team)	[46][47][48]
Luis Pereira Melo Godinho	Portugal	Volleyball	Cannabinoids	[27]
Babak Goldasteh	Iran	Wrestling	Anabolic steroids	[31]
Andreas Goldberger	Austria	Ski jumping	Cocaine	[49]
Daria Goltsova	Russia	Weightlifting	Cocaine	[1]
Derlis Gómez	Paraguay	Football (soccer)	Coca	[50]
Joellison Viana de Silva Gomez	Brazil	Weightlifting	Methylhexaneamine	[1]
Papu Gómez	Argentina	Football (soccer)	Terbutaline	[51]
Kerem Gönlüm	Turkey	Basketball	Cathine	[52][53]
Aitor González	Spain	Cycling	Methyltestosterone metabolite	[54]
Luis González	Venezuela	Baseball	Amphetamines	[55]
Dee Gordon	United States	Baseball	Exogenous Testosterone and Clostebol	[56]
Dwight Gooden	United States	Baseball	Cocaine	[57]
Besarion Goshashvili	Georgia	Wrestling	Furosemide	[31]
Anna Gostomelsky	Israel	Swimming	Prednisolone	[41]
Ólafur Gottskálksson	Iceland	Football (soccer)		[58]
Lauren Goulart	Brazil	Swimming	Methylhexaneamine	[14]
Royce Gracie	Brazil	Mixed martial arts	Nandrolone metabolite	[59]
Sam Grammer	United States	Highland Games		[60]
Johan Granath	Sweden	Speed skating	Unknown substance	[61]
Yasmani Grandal	Cuba	Baseball	Testosterone	[62]
Guy Greavette	Canada	Weightlifting	Anabolic steroids	[63]
Robbie Green	United Kingdom	Darts	Cannabis	[64]
Elen Grigoryan	Armenia	Weightlifting	Methandienone	[1]
Jason Grimsley	United States	Baseball	Amphetamines, anabolic steroids, human growth hormone, (self-admitted)	[65]
Kevin Grubb	United States	Auto Racing	Refusal to submit to doping control	[66]
Firas Guachai	Tunisia	Swimming	Testosterone	[67]
Pep Guardiola	Spain	Football (soccer)	Nandrolone	[68]
Elzo Guerra Aranoz	Chile	Weightlifting	Methandienone	[1]
Melvin Guillard	United States	Mixed martial arts	Cocaine	[69]
Zafar Guliyev	Russia	Wrestling	Bromantane	[70]
Fabrizio Guidi	Italy	Cycling	Erythropoietin (EPO)	[71]
Zahid Gulfam	Pakistan	Cycling	Nandrolone	[72]
Ari Gunnarsson	Iceland	Swimming	19-Norandrosterone	[16]
Mathias Gunthar	Sweden	Wrestling	Furosemide	[31]
Guo Tianxin	China	Weightlifting	Clenbuterol	[1]
Carlos Gurpegi	Spain	Football (soccer)	19-norandrosterone	[73][74]
Keith Gurusinghe	Sri Lanka	Rugby union	Methylhexanamine	[75][76][77]
Rebeca Gusmão	Brazil	Swimming	Testosterone; Tampering	[78]
Ferenc Gyurkovics	Hungary	Weightlifting	Oxandrolone	[79]