CNN - Oct 7 - Former Tinder and Match Group CEO Greg Blatt has filed a lawsuit, accusing Tinder co-founder Sean Rad and former VP of marketing and communications Rosette Pambakian of defaming him. Blatt says they made public accusations of sexual harassment and sexual assault against him last year. Rad, Pambakian and eight other early employees of Tinder kicked off a whirlwind of legal battles when they sued Match Group and IAC for $2B in August 2018 alleging that the company manipulated the valuation of Tinder to deny them billions of dollars they were owed. Included in that suit was Pambakian's claim that she was allegedly groped and sexually harassed by Blatt at a 2016 holiday party. In his suit, Blatt alleges that Rad, internally, made a false accusation of the alleged sexual assault incident without Pambakian's support, and she was ultimately convinced by Rad to join his valuation suit and bring her claims against Blatt. Blatt is seeking a minimum of $50M in damages in his defamation suit.