April 30 (Reuters) - Google CEO Sundar Pichai is

expected to take the stand on Wednesday morning at a trial in

Washington where antitrust enforcers seek an order forcing the

company to sell its Chrome web browser and take other measures

to boost competition among online search providers.

Pichai will testify in the Alphabet unit's defense

against proposals by the U.S. Department of Justice that the

company has said would cause unintended harm to browser

developers, smartphone makers and internet users.

The outcome of the case could fundamentally reshape the

internet by potentially unseating Google as the go-to portal for

information online.

The DOJ and a broad coalition of state attorneys general are

pressing for remedies to restore competition even as search

evolves to overlap with generative AI products such as ChatGPT.

Prosecutors are concerned that Google's dominance in search

could extend to AI.

U.S. District Judge Amit Mehta ruled last year that Google,

the site and app where most U.S. internet users search for

information, "has no true competitor." Google maintained its

monopoly in part by paying billions of dollars to companies

including Apple ( AAPL ), Samsung, AT&T ( T ) and Verizon

to be the default search engine on new mobile devices, the judge

said.

The DOJ wants the judge to end those payments and require

Google to share search data with competitors.

Google has said the proposals would give away its hard work,

and jeopardize its users' privacy and endanger smaller companies

like Mozilla, the developer of the Firefox browser, that rely on

Google for revenue.

The company recently loosened its agreements to allow device

makers and carriers to pre-install other search and AI apps,

according to evidence shown at trial. Google has said it plans

to appeal once the judge makes a final ruling.