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It has emerged that Julio Cesar Chavez Jnr failed a drugs test after losing his WBC middleweight crown to Sergio Martinez at the weekend.

The Mexican, who is the son of the legendary multiple weight world champ of the same name, gave a post-fight urine sample which tested positive for marijuana.

While not a performance enhancing drug, it is on the banned substance list.

"The commission let Top Rank's Carl Moretti know that he tested positive," promoter  Bob Arum told ESPN.com.

"I can't really get excited about it. There's no promoter in boxing who could pass the marijuana test, including myself.

"Julio is going to have to explain to the commission what happened and the commission will be guided accordingly. If there was a trace of marijuana, to me, it's not the same as using a performance-enhancing drug. That is cheating."

 

Chavez Jnr almost retained his title in spectacular fashion when he dropped Martinez in the 12th round, but he couldn't finished the job and lost a wide unanimous decision.

20/09/2012 15:21:06