Prosecutors say two security guards at Los Angeles' Dodger Stadium have been arrested and are accused of stealing equipment, baseballs and jerseys from the major league team to sell online. The Los Angeles County district attorney's office says Juan DeDios Prada and Fernando Sierra pleaded not guilty to burglary and other charges Thursday. Prosecutors say the two security guards conspired with a third man, Jesse Luis Dagnesses, to steal baseball uniforms and other team merchandise to sell online.