The first substantiated reports of potential new Seahawks owners emerged Thursday via reports from Sportico.com. Sportico reported interest from two groups — one led by Wyc Grousbeck and Aditya Mittal, each currently Alternate Governors of the Boston Celtics, and another fronted by Vinod Khosla, a minority shareholder of the San Francisco 49ers. Here’s what we know about each potential new owner:  Wyc Grousbeck Sportico reported that Grousbeck would team with Mittal to lead a group to make a bid on the Seahawks. Of the two, it’s Grousbeck who would likely be the most visible face of the ownership group.  As Sportico described it, Mittal — CEO of ArcelorMittal Steel — would remain living in London while “Grousbeck would reside in Seattle part-time and effectively operate the franchise.” Grousbeck is the son of H. Irving Grousbeck who co-founded Continental Cablevision in Boston in 1963 and became the co-director of the Center for Entrepreneurial Studies at Stanford.…