By Rick Reeno

WBC junior middleweight champion Sergio Martinez is not losing sleep over a possible mandatory defense against unbeaten Julio Cesar Chavez Jr. Based on the rankings, Chavez is in line for a shot at Martinez. He wants to secure his shot at the WBC title in 2010. Based on Chavez's recent comments that appeared on BoxingScene.com, where the Mexican fighter pledged to fight for the title in 2010 - Martinez wanted to send a message.

"Chavez Jr. can show up and take any performance enhancing drugs he wants and he'll still go to sleep. If he wants to go to sleep in Mexico, I will be more than happy to travel to Mexico and put him to sleep, and he can use whatever performance enhancing drugs he wants," Martinez said.

Martinez's crack about the "performance enchancing drugs" is a crack on Chavez recently failing a Nevada drug test in connection with his fight against Troy Rowland on November 14. Chavez tested positive for a diuretic, which only helps a fighter drop weight by increasing his rate of urination. I've spoken to a few fighters about Chavez's positive result. All of them agree that a diuretic will not help a fighter's performance in any way.