Former San Francisco 49er Dana Stubblefield was charged Monday with the rape of a woman police say is disabled after an investigation that lasted over a year, according to the Santa Clara County District Attorney's Office.

Stubblefield, 45, faces five felony counts related to the alleged assault, according to the DA’s office. The April 2015 incident occurred at Stubblefield’s home in Morgan Hill, where the woman, who is developmentally disabled, had been asked to interview for a babysitter job, prosecutors said. [[377909671, C]]

The woman, who was 31 at the time, immediately went to the Morgan Hill Police Department to report she was raped, according to prosecutors.

“This was a crime of violence against a vulnerable victim,” Deputy District Attorney Tim McInerny said. “She was looking for a job and she was unconscionably assaulted.”

PHOTOS: 49ers' Stubblefield Denies Rape Charges

Stubblefield vigorously denied the allegations, saying that the sex was consensual. They even insinuated in a statement that the unnamed woman has prior convictions for assault.

Stubblefield's attorney, Kenneth Rosenfield, said the rape charge against his client is "a false and completely untrue allegation."

"This is nothing but a money grab, and an attempt to get money and take advantage of his celebrity status," Rosenfield said.

Rosenfield said he has also provided the District Attorney's office results from an independent lie detector test "that clearly show the encounter was consensual."

More information from Stubblefield and Rosenfield are expected to be released during a press conference scheduled for Tuesday morning.

Stubblefield contacted the woman through babysitter website Sittercity.com, and the incident allegedly occured April 9, 2015, according to a Morgan Hill police report.

The report said Stubblefield and the woman set up an interview that lasted 20 minutes. After she left, the report said the woman got a text message from Stubblefield saying he wanted to pay her for her time.

When the woman returned to Stubblefield's home, the report said she was assaulted and paid $80.

Sitterycity Senior Vice President Jeremy Gottschalk released the following statement Monday:

“We were shocked and horrified to learn today about the charges against former NFL football player Dana Stubblefield. As an online network where care providers and families connect, safety is paramount. Upon learning of this incident, we immediately reached out to the Morgan Hill police department to offer our assistance in the investigation involving Mr. Stubblefield. Our hearts go out to the victim and her family.”

Stubblefield was booked into jail on Monday after an investigation that lasted nearly 13 months. He was out of late Monday after posting bail, which was set at $250,000. He is scheduled to be arraigned on June 3 at the South County Courthouse in Morgan Hill.

In 2010, a federal judge sentenced the former 49ers star to 90 days in jail for stealing his former girlfriend's mail. Also that year, Stubblefield admitted submitting a change of address form so his former girlfriend's mail, including her unemployment checks, would be delivered to his residence.

Stubblefield was placed on probation in 2009 after pleading guilty to lying to investigators about his steroid use during his playing days.

Stubblefield played 11 seasons in the NFL, including the first five with the 49ers. He later returned to the 49ers in 2001 and '02, before finishing his career with the Oakland Raiders.

Stubblefield, a first-round pick of the 49ers' in 1993, recorded 10.5 sacks and was named the NFL Defensive Rookie of the Year. He was named the NFL’s Defensive Player of the Year with a career-high 15 sacks in 1997. He signed a lucrative contract with Washington in 1998.

He was also an assistant coach at San Jose's Valley Christian High School.