Cassie Ventura, Sean “Diddy” Combs’ ex-girlfriend, is expected to testify in court today. Her attorney signaled that she’s ready to take the stand while he was arriving at the Manhattan courthouse Tuesday morning.

Combs faces five federal charges of racketeering, sex trafficking and transportation to engage in prostitution, to which he has pleaded not guilty.

Lawyers on both sides of Sean Combs' sex-crimes trial delivered opening statements, and witnesses alleged the one-time mogul was violent in multiple instances.