Gennady Golovkin is not letting Canelo Alvarez's failed drug test blow over. The boxing superstar said he tested positive for clenbuterol because of contaminated meat, but GGG isn't buying it.

“Come on, I told you, it’s not meat,” Golovkin told reporters Tuesday, via USA Today. “Canelo’s team are using these drugs and everybody’s trying to pretend it’s not happening."

Golovkin went one step further in his accusation of Alvarez. He claimed he saw proof of the Mexican's steroid usage at their fight in September.

“Before the first fight, I knew he was not clean,” Golovkin said. “Have a look at the video. He used some pills. It was pretty obvious when his muscles were all with traces of injections. I’ve known it for a long time.”

The Kazakhstani fighter didn't limit his accusations to Alvarez though. He called out just about everyone in boxing including one of the most famous fighters of a generation.

“This guy, he knows. This is not his first day in boxing. He proves he gets benefits from everyone and he can get away with it," Golovkin said of Alvarez. "The commentators, commission, doping commission — this is a very bad business, (it’s) not sport. Check him on a lie detector and then we can find out everything.”

He continued: "You can talk about (Alvarez’s promoter Oscar De La Hoya). He is also not clean. He is dirty.”

Golovkin held nothing back at his camp in Big Bear Lake, Calif., but the other side was quick to respond to the claims.

“It is ridiculous,” Golden Boy President Eric Gomez told USA Today. “(GGG) doesn’t sound like a confident fighter. I guess he has a lot of insecurities. There is an investigation (into the clenbuterol) and we are cooperating. When it is complete, all the facts will come out.

“Canelo is a clean fighter, the facts and statistics back it up.”

GGG and Alvarez will face off for a second time on May 5.