The forthcoming sports streaming venture backed by Disney, Fox Corp. and Warner Bros. Discovery will reach 5 million subscribers in its first five years, according to a projection shared Monday by Fox CEO Lachlan Murdoch. Speaking at a conference hosted by Morgan Stanley, Murdoch cited the forecast in responding to questions about whether the new venture would threaten the company’s existing pay-TV business. Fox has “built our plans around” the 5 million subscriber outlook, Murdoch said. “So some of the ta ...