SAN FRANCISCO — Yahoo has long been a top online destination for sports fans, and this year, it made two big bets to expand that audience: its multimillion-dollar deal to webcast a National Football League game and its July entrance into the world of daily fantasy sports contests.
While the N.F.L. stream a month ago was successful enough that both Yahoo and the N.F.L. are exploring further streaming partnerships, daily fantasy games have been more troublesome.
Eric T. Schneiderman, the New York attorney general, just expanded his investigation of daily fantasy sports games to include Yahoo, the No.