StarStock, an online marketplace for buying and selling sports cards, raised $8 million in a Series A funding round. : StarStock, an online marketplace for buying and selling sports cards, raised $8 million in a Series ... [+] A funding round. During the summer of 2019, Scott Greenberg met for lunch in New York with Nigel Eccles, a co-founder of FanDuel who had become a mentor and friend. Greenberg, who had graduated from Syracuse University just two years earlier, told Eccles that he recently began buying and selling sports cards on eBay.