Millions of Americans count themselves as devoted sports fans, but few exchange-traded funds or mutual funds are available for them to invest in their passion. And even those options are only indirectly related to professional sports, with returns that have been mixed. “The idea of investing in what you know and love has been around for a long time,” according to Matt Hougan, CEO of Inside ETFs. “But most of what we associate with the economic value of sports—team ownership and player contracts—comes in private transactions.” Read the original story from The Wall Street Journal.