Tamara Green is suing the former The Cosby Show star for defamation for allegedly calling her and other accusers liars when they went public with their sexual abuse allegations in the 1970s.

To help her lawsuit, Green asked for access to Cosby's confidential testimony from a 2005 legal battle with Andrea Constand, a former employee of the actor's alma mater university who accused him of drugging and sexually assaulting her in 2004. The legal battle with Constand was settled out of court and the records were sealed.

Cosby's lawyers have now hit back by filing paperwork at the U.S. District Court in Springfield, Massachusetts on Tuesday (21Apr15), urging a judge to keep the deposition private.

In the motion, obtained by Dailymail.com, Cosby's lawyers insist unsealing the testimony will be an invasion of the star's privacy.

On Thursday (23Apr15), the veteran funnyman was hit by allegations from three more women, who claim he assaulted them in the 1970s and 1980s. They join 30 other women who have come forward with claims about Cosby, who vehemently denies any wrongdoing.