Manager: Keisha Chante Didn't Send Sexy Text to Brown

Keisha Chante did not send a text message to Chris Brown on the night of his alleged assault of Rihanna, Chante's manager tells Usmagazine.com.

"This is another unsubstantiated, untrue report; she was nowhere near the

incident in any way," Mona Scott tells Us.

On Wednesday, RadarOnline.com reported that Brown's alleged violent altercation with Rihanna Sunday night happened after she discovered sexually explicit text messages sent to him by another woman.

Chante, a singer and actress, has been "getting frantic" after receiving phone calls from everyone following the reports. But, her manager says, she hardly knows Brown.

"She's not even dating Chris! I think they met a few years back, probably three or four years ago in Canada ," her manager tells Us. "It's crazy, there's been a continuous kind of reporting of them linked together, and this has been the worst of it all. But, no she had absolutely nothing to do with them or any of that."

Scott also denies that Chante is playing Aaliyah, who died in a 2001 plane crash, in the movie adaptation -- although she does call it a "great opportunity."