JOSH BARNETT
Caught: 4/22/02, following his TKO victory over Randy Couture at UFC 36.
Tested positive for: Boldenone, Nandrolone, and FluoxymesteroneTIM SYLVIA
Caught: 10/7/03, following his first-round knockout of Gan McGee at UFC 44.
Tested positive for: Stanozolol
KIMO LEOPOLDO Caught: 8/16/04, following his TKO loss to Ken Shamrock at UFC 48.
Tested positive for: Stanozolol
NATE MARQUARDT
Caught: 8/15/05, following his unanimous decision win over Ivan Salaverry at Ultimate Fight Night 1.
Tested positive for: Nandrolone
KIMO LEOPOLDO AGAIN!!
Caught: 7/20/06, two days before he was scheduled to fight Bas Rutten at WFA: King of the Streets.
Tested positive for: Stanozolol
VITOR BELFORT
Caught: 10/26/06, following his unanimous decision loss to Dan Henderson at PRIDE 32.
Tested positive for: 4-Hydroxytestosterone
PAWEL NASTULA
Caught: 10/26/06, following his submission loss against Josh Barnett at PRIDE 32.
Tested positive for: Nandrolone
STEPHAN BONNAR
Caught: 11/3/06, following his second unanimous decision loss to Forrest Griffin at UFC 62.
Tested positive for: Boldenone
KIT COPE
Caught: 1/25/07, following his submission via strikes loss to Rob McCullough at WEC 25.
Tested positive for: Boldenone
JOHNNIE MORTON
Caught: 6/13/07, following his 38-second knockout loss against Bernard Ackah at Dynamite!! USA.
Tested positive for: Unspecified anabolic steroids. Morton’s pre-fight urine test came back as positive for a very elevated T/E (testosterone) ratio — 83.9, when the average for an athlete is 6.
ROYCE GRACIE
Caught: 6/14/07, following his unanimous decision win over Kazushi Sakuraba at Dynamite!! USA.
Tested positive for: Nandrolone
JORGE ORTIZ
Caught: 6/26/07, following his TKO loss to Jesse Taylor at Total Combat 21.
Tested positive for: Nandrolone
PHIL BARONI
Caught: 7/7/07, following his technical submission loss to Frank Shamrock at Strikeforce: Shamrock vs. Baroni.
Tested positive for: Boldenone and Stanozolol
SEAN SHERK
Caught: 7/19/07, following his unanimous decision win against Hermes Franca at UFC 73.
Tested positive for: Nandrolone
ERMES FRANCA
Caught: 7/19/07, following his unanimous decision loss to Sean Sherk at UFC 73.
Tested positive for: Drostanolone
ANTHONY TORRES
Caught: 10/3/07, following his TKO loss to Jess Liaudin at UFC 75.
Tested positive for: Boldenone. Torres was the first fighter to be caught by a UFC-administered steroid test.
BILL MAHOOD
Caught: 10/15/07, following his submission via rib injury loss to Bobby Southworth at Strikeforce’s first Playboy Mansion show.
Tested positive for: Drostanolone
ADAM SMITH
Caught: 10/17/07, following his unanimous decision loss to Dewey Cooper at Strikeforce’s first Playboy Mansion show.
Tested positive for: Nandrolone and Stanozolol — as well as cocaine and marijuana.
JASON WINTHERS
Caught: 11/19/07, following his TKO loss against Richard Blake at Rebel Fights: Unleashed Fury.
Tested positive for: Stanozolol and the veterinary steroid Trenbolone — as well as methadone and morphine.
RUBEN VILLAREAL
Caught: 11/28/07, following his TKO loss to Jimmy Ambriz at WCO: Kerr vs. Gavin.
Tested positive for: 4-Hydroxytestosterone
DENNIS HALLMAN
Caught: 11/29/07, following his submission win over Jeremiah Metcalf at Strikeforce: Four Men Enter, One Man Survives.
Tested positive for: Drostanolone and Nandrolone
ALEXANDER CRISPIM
Caught: 11/29/07, following his unanimous decision win over Clint Coronel at Strikeforce: Four Men Enter, One Man Survives.
Tested positive for: Desoxymethyltestosterone
CARINA DAMM
Caught: 5/15/08, following her submission win over Sophie Bagherdai at Femme Fatale Fighting 4.
Tested positive for: Nandrolone
ALEXANDRE NOGUEIRA
Caught: 7/7/08, following his TKO loss to Jose Aldo at WEC 34.
Tested positive for: Boldenone
ANTONIO SILVA
Caught: 8/21/08, following his TKO win over Justin Eilers at EliteXC: Unfinished Business.
Tested positive for: Boldenone
EDWIN DEWEES
Caught: 8/21/08, following his TKO loss against Antonio Rogerio Nogueira at Affliction: Banned.
Tested positive for: A massive amount of Nandrolone. The CSAC’s Bill Douglas said that the amount of the steroid in Dewees’ system — 499ng/ml, if you want to get technical — was “hard to explain.”
CHRIS LEBEN
Caught: 11/3/08, following his decision loss to Michael Bisping at UFC 89.
Tested positive for: Stanozolol
KIRILL SIDELNIKOV
Caught: 3/3/09, following his TKO loss to Paul Buentello at Affliction: Day of Reckoning.
Tested positive for: Stanozolol
KEN SHAMROCK
Caught: 3/11/09, following his submission win over super-heavyweight tubbaguts Ross Clifton at WarGods: Valentine’s Eve Massacre.
Tested positive for: 19-Norandrosterone, 19-Noretiocholanolone, and Stanozolol
JOSH BARNETT (Pt. 2)
Caught: 7/21/09, 11 days before he was scheduled to fight Fedor Emelianenko in the main event of Affliction: Trilogy.
Tested positive for: Drostanolone
COLE PROVINCE
Caught: 8/17/09, following his unanimous decision win over Fredson Paixao at WEC 42.
Tested positive for: Methasterone
CHAEL SONNEN
Caught: 9/18/10, following his submission loss to Anderson Silva at UFC 117.
Tested positive for: "A natural steroid"
Punishment: $2,500 fine and a one-year suspension from the CSAC.
VINICIUS QUIEROZ
Caught: 11/2/10, following his submission loss to Rob Broughton at UFC 120.
Tested positive for: Stanozolol