The sports streaming joint venture between Disney, Fox, and Warner Bros. Discovery will have to wait.

A federal judge has blocked the planned Aug. 23 launch of Venu, a collaboration between the three media giants.

FuboTV in February sued over the planned app, and argued the launch should be enjoined for antitrust reasons. Judge Margaret Garnett agreed.

“[I]t appears to the Court that Fubo is likely to succeed on its claims that by entering into the JV, the JV Defendants will substantially lessen competition and restrain trade in the relevant market in violation of Section 7 of the Clayton Act,” she wrote in a 69-page decision unveiling the somewhat shocking order. “The JV Defendants and their officers, directors, employees, agents, and all other persons acting on their behalf are hereby enjoined and restrained from launching the JV pending final adjudication of the merits of this case or further order of the Court.”

The three media giants may seek emergency relief. A lawyer for WBD argued earlier this week that “a preliminary injunction would terminate the joint venture.” Fubo had argued that the lack of one would doom its business.

This is a developing story and will be updated.

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