Press Release: Robert Guerrero (16-1-1 with 9 KOs) has been sparring with Bobby Pacquiao, brother of Manny Pacquiao, as well as 122-pound WBC/IBF champion Israel Vasqez.  "Everything went well today.  I worked on my body attack and did some adjustments on my footwork," reported Guerrero. Guerrero's opponent in his first fight since his loss will be Sandro Marcos (25-14-2 with 21 KOs) of Mazatlan, Mexico in a ten-round main event. The bout will be held on May 18, 2006 in San Jose, California. "The rest of this camp is going to be intense.  I'm looking forward to this fight.  I want my fans to leave the Tank with a lasting impression" Tickets for the HP Pavilion are on sale now at (408) 999-5748.