San Francisco 49ers wide receiver Michael Crabtree has been cleared by the San Francisco Police Department and is not being charged in a sexual assault allegation. San Francisco District Attorney George Gascon released the following statement on Friday: "The San Francisco Police Department -- Special Victims Unit completed and submitted a thorough investigation of the allegations against Michael Crabtree. Following a review of all the evidence, my office has determined that no charges will be filed against Michael Crabtree at this time." Crabtree was interviewed Friday of last week for an alleged assault that was said to have taken place the prior Sunday. The Niners wide reciever was described as cooperative during the investigation and said the off-the-field issue wasn't a ...