DENVER - Sources familiar with the investigation of Denver Nuggets player Chris "Birdman" Andersen told CALL7 Investigator John Ferrugia Friday that the case involves Andersen's alleged relationship with a 17-year-old girl and the possibility that he shared photographs of her via the Internet.

Douglas County sheriff's investigators on Thursday executed a search warrant at Andersen's Larkspur home and seized property, including electronic devices, which investigators believe is connected to the case, sheriff's spokesman Ron Hanavan said.

Some of the electronic devices are being sent to the Rocky Mountain Regional Computer Forensics Laboratory for analysis, Hanavan added.

Law enforcement sources told 7NEWS it could take weeks to analyze computers and other electronic devices to determine whether they contain any evidence.

Meanwhile, Andersen's attorney suggested that his client was the target of an extortion attempt by a young California woman.

Andersen, 33, has not been arrested or charged with a crime.

Colin Bresee, an attorney for Andersen, claimed a California woman has tried to get items of value from Andersen.

7NEWS reached Bresee by phone and he confirmed a statement he first issued to the Denver Post.

The statement reads:

• "A female fan in 2010 mailed Mr. Andersen multiple letters and included several photos in which she was scantily clad. Chris and this woman communicated with each other and in 2011, this woman, who represented herself as 21 years of age, flew to Colorado, showing her required identification.

  "After leaving Colorado, she became upset at his lack of interest. In 2012, she threatened to retaliate if he did not provide financial remuneration."

According to the statement, someone claiming to be the woman's mother wrote in an email that " 'i (sic) want him to pay for everything on her Amazon wish list, 5K for her bedding stuff and her victoria secret wish list."

"Professional athletes are routinely targeted by these types of individuals," Bresee said in the statement. "The media has been speculating that he's a suspect and not a victim in a criminal investigation. Mr. Andersen has been fully cooperative with the authorities. The investigation is expected to take three weeks. We're confident it will show that Chris did not engage in any criminal conduct."

On Thursday, the Nuggets said Andersen had been excused indefinitely from team activities during the Douglas County sheriff's investigation.