The Atlanta Hawks said Wednesday that Tony Ressler, an Ares Management co-founder, is leading a group to buy the NBA basketball franchise. The group includes NBA All-Star Grant Hill, Clayton Dubilier & Rice partner Rick Schnall, Spanx founder Sara Blakely and Marquis Jet co-founder Jesse Itzler. Financial terms weren’t announced although press reports valued the deal at $850 million. The sale does include operation of the Philips Arena but still needs approval by the NBA Board of Governors. Goldman, Sachs & Co. and Inner Circle Sports advised the sellers while Moelis & Co. advised the buyer.