Phila. Union's new investor is public-debt mogul, Comcast in-law, PGW chair

The latest Philadelphian to buy into the Union professional soccer team is government-finance banker David Seltzer.The Union's announcement notes Seltzer's role as founder of Mercator Advisors, as a past bond adviser to the U.S. Department of Transportation, and current chairman of the city-owned Philadelphia Gas Works (which Seltzer has portrayed as chafing under inefficient city governance, amid the drive to sell it to private investors.) It's not in the Union release, but Seltzer's longtime wife is Lisa Roberts, daughter of Comcast founder Ralph Roberts, brother of Comcast CEO Brian Roberts (the Seltzers are also copatrons of the Philadelphia Museum of Art). The Roberts family is of course deeply involved in pro sports: it's the biggest reseller of ESPN and other sports video; the company controls the NHL Flyers as well as pro sports broadcasting and venues in Philadelphia and other big cities.UPDATE: Seltzer tells me this is his investment and in no way connected to the Robertses. -- The Union also reports, not the size of the Seltzer investment, but the fact that "David and his sons Jamie and Evan have a passion for business and sports."