by David P. Greisman

There is not yet any official confirmation — nor any official denial — regarding a report that Julio Cesar Chavez Jr. tested positive for marijuana after his Sept. 15 fight with middleweight champion Sergio Martinez.

Keith Kizer, the executive director of the Nevada State Athletic Commission, was not yet able to say whether this report is true, as he would not speak to the matter until all of the results from the Sept. 15 cards in Las Vegas are back.

“I cannot confirm or deny anyone until I get all the results,” Kizer told BoxingScene.com via email. “Hopefully I will have all of them by Friday afternoon.”

David P. Greisman is a member of the Boxing Writers Association of America. Follow David on Twitter @fightingwords2 or send questions/comments via email at fightingwords1@gmail.com