Apple senior vice president of services Eddy Cue is set to testify at the US v. Google antitrust trial on Tuesday, as the trial enters its third week. Cue’s presence, which Apple fought to avoid, underscores Apple’s importance to the Justice Department’s case against Google — which alleges that the company’s juggernaut search engine violates antitrust law. News of Cue’s scheduling was posted by Bloomberg’s Leah Nylen and Big Tech on Trial on X, formerly Twitter.

Cue will be the second Apple executive to testify, following Apple AI head (and former Google executive) John Giannandrea on Thursday and Friday. Much of Giannandrea’s testimony, however, took place under wraps in a closed courtroom. It’s unknown how much of Cue’s testimony will be open to the public or what precisely he’ll be asked. But Apple occupies a substantial role in the Justice Department’s arguments thanks to a multibillion-dollar deal that makes Google the default search engine on Safari. The Justice Department claims that Google’s agreement has kept Apple out of the search engine business, depriving users of more competition in the space while squeezing out smaller engines like DuckDuckGo, whose CEO also testified in the trial last week.

In roughly 15 minutes of public testimony, Giannandrea suggested