Press Release: Mexican middleweight David "The Destroyer" Lopez, and Marco Antonio "Poison" Rubio will square off April 19, 2008in Las Vegas as the featured undercard bout  supporting  Bernard Hopkins vs. Joe Calzaghe. "Battles between Mexican fighters usually end up in a war," said Eric Gomez, vice president and matchmaker of Golden Boy Promotions.  "Their ring histories and experience make this an extremely competitive fight."  Lopez (33-12, 23 KOs) is coming off of a decision victory with David Toribio in his last bout on November 16, 2007. His resume includes a seventh-round knockout of former titlist Lonnie Bradley and a stoppage of former Olympian Jerson Ravelo, both of whom were undefeated prior to stepping into the ring with the Nogales native. Lopez is also serving as a sparring partner for Bernard Hopkins as he prepares for Calzaghe. Rubio's (41-4-1, 37 KOs) most recent fight ended in with a seventh round knockout of former Olympian Jose Luis Zertuche on February 9, 2007.