Bulldogs players may be required to provide DNA samples as police begin questioning them over the alleged sexual assault of a woman in Coffs Harbour last weekend.

After a quiet trip to the Gold Coast this weekend for an impressive 30-18 trial win over St George Illawarra, the rugby league club now turns its attention back to the claims made against its players by the 20-year-old woman.

An 11-strong police strike force based in Sydney - Strike Force McGuigon - is expected to start interviewing Bulldogs players from Monday.

There were reports the police may be ready to make charges as rumours emerged they had discovered video tape of the incident.

Bulldogs CEO Steve Mortimer said the club and players would co-operate with police and if DNA tests were required of the players, they would provide them.

"I've spoken to the head detective ... they've informed me they're coming down," Mortimer told ABC.

"Should they need anything else such as DNA testing we'll make the players available - we are here to help the police."

A huge media pack was told not to question Bulldogs coach Steve Folkes about the affair after Saturday's trial match.

Players refused to speak to the media and the only hint of post-match controversy was when Braith Anasta signed a female fan's breast.

But some Bulldogs players gave their side of the story to a Sunday paper, claiming the woman involved had sex with a number of players previously but not on the Sunday morning of the alleged sexual assault.

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