FuboTV is suing Disney, Fox and Warner Bros. Discovery over their recently announced sports streaming joint venture, citing what the company calls “extreme suppression of competition in the U.S. sports-focused streaming market,” according to a copy of the lawsuit obtained by CNBC.

The joint venture, announced earlier this month, aims to offer viewers a new way to access marquee live sports. It’s slated to roll out this fall, but several questions remain around its pricing and structure.

“These horizontal competitors are colluding to create a JV that will cause substantial harm to competition and consumers,” the complaint reads.

The lawsuit also names Disney-owned ESPN and Hulu as defendants.

A spokesperson for the joint venture declined to comment.

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