SF district attorney won't file charges against 49ers' Crabtree for alleged sexual assault

San Francisco 49ers wide receiver Michael Crabtree (15) practices at an NFL football training facility in Santa Clara, Calif., Friday, Jan. 25, 2013. The 49ers are scheduled to play the Baltimore Ravens in the Super Bowl on Sunday, Feb. 3. (AP Photo/Jeff Chiu) (The Associated Press)

San Francisco's district attorney won't file criminal charges against 49ers wide receiver Michael Crabtree after reviewing evidence of an alleged sexual assault in a hotel after the team's playoff victory over the Green Bay Packers.

After examining a "thorough investigation" submitted by police, District Attorney George Gascon said Friday his office determined that no charges would be filed "at this time."

Crabtree's attorney, Joshua Bentley, didn't immediately return a call seeking comment, and the team has referred all questions about the matter to him.

The 49ers are preparing to meet the Baltimore Ravens in the Super Bowl on Feb. 2 in New Orleans.