No charges will be filed against Giants third baseman Pablo Sandoval in connection with an alleged sexual assault at a hotel near Santa Cruz, authorities said Monday. Santa Cruz County District Attorney Bob Lee told Sandoval's attorney, Eric Geffon, that an investigation by the sheriff's office did not corroborate the alleged victim's account, Geffon said. The decision not to prosecute came four days after sheriff's investigators said there was insufficient evidence to arrest Sandoval.