Attorneys representing Georgia Tech men's basketball coach Josh Pastner filed a civil suit Friday against an Arizona man and woman who accused him of breaking NCAA rules.

In the lawsuit, filed in Superior Court in Pima County, Arizona, the attorneys claimed former Tech booster Ron Bell and his girlfriend, Jennifer Pendley, "began a malicious campaign to defame Pastner, and to extort and blackmail Pastner, by threatening to release and releasing to the public, the media, Georgia Tech and the National Collegiate Athletics Association (NCAA), false and patently untrue information Bell and Pendley believed and intended would be extremely damaging to Pastner's reputation and would result in Pastner losing his job at Georgia Tech and being penalized by the NCAA."

Among other accusations, Bell accused Pastner of sexually assaulting Pendley, which Pastner's attorneys denied in the lawsuit. Bell made a similar accusation about Pastner during telephone conversations with ESPN.

"I am disgusted and devastated by the actions of two individuals to whom I showed compassion," Pastner said in a statement. "My family and I are victims of fraud and extortion and the extent to which these individuals have gone to harm us is truly unfathomable. I absolutely and unequivocally never assaulted or harassed Ms. Pendley and I am truly sickened by these false claims."

In a Nov. 7 report by CBS Sports, Bell alleged that he had provided Georgia Tech basketball players Josh Okogie and Tadric Jackson with improper benefits by paying for them to fly to his home in Tucson, Arizona, and paying for their meals at a restaurant in Atlanta. Bell also alleged he sent the players shoes and shirts that he purchased online.