Cox is set to go to trial in October on a case of sexual assault in Lone Tree. The alleged incident happened in September 2010. More details surfaced last week when the Colorado Supreme Court ordered the release of the affidavit in the case.

In the affidavit, the victim says she became pregnant the night of the alleged assault. Investigators also did a DNA test and it found that Cox was the father of the baby.

Last week, the Denver Broncos organization called the allegations "extremely serious and troubling."

Two other members of the Broncos were also mentioned in the affidavit. One of them was cornerback Cassius Vaughn, Cox's roommate.

On Monday, 9NEWS talked with Vaughn at Valor Christian High School, where a number of players have been working out during the lockout.

According to the affidavit, Vaughn may have been asleep when the alleged assault took place.

Vaughn would only speak briefly with 9NEWS about the case.

I guess I can say, just wrong place, wrong time," Cox said. "I hope everything goes well with him [Cox], and just for the organization and myself, and even him [Cox], to go through this process, it's terrible, and I just hope the best for him [Cox]. That's all I can really say."

According to the affidavit, the next day Cox told the alleged victim to "take a shower" and was "very intent on them cleaning the apartment."

On Monday , district attorneys office would only reiterate that "Cox is the only person that has been charged."

Cox's attorney plans on vigorously defending his client against the charges, but the Broncos still have a decision to make about the player and whether he will be suspended for conduct.

His trial is set to begin on Oct. 18 and it could take more than a week. If he is found guilty of the most serious charge, he could face extensive prison time.

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