By Salvador Rodriguez

Four division world champion Juan Manuel Marquez believes WBO welterweight champion Timothy Bradley is playing mind games with him. In an interview with BoxingScene Radio, Bradley threatened to withdraw from his fight with Marquez - unless the Mexican boxer subjected himself to Olympic style drug testing under VADA [Voluntary Anti Doping Association]. Marquez prefers to use USADA [United States Anti Doping Association]. The match is getting close, with a date of October 12th at the Thomas & Mack Center in Las Vegas.

Top Rank's CEO Bob Arum tried to settle the dispute by paying additional funds to have the Nevada State Athletic Commission handle the testing. But that is not good enough for Bradley, who says the terms of the fight contract call for VADA and USADA to be used.

Marquez is paying Bradley no mind.

“Bradley is just reflecting the fear that he is feeling. I would like to do the examinations with USADA, but I am not going to fall into this game. He is the one who needs this fight. The most important victory of my career - I already achieved it [against Pacquiao], but [Bradley] is becoming arrogant. We are ready to get tested. He wants to do it with VADA....I prefer to do it with USADA. I have never tested positive. I do not know why Bradley is [talking the way he is]," Marquez said.