A Google executive told colleagues the goal for the company's then-nascent online advertising business in 2009 was to "crush" rival advertising networks, according to evidence prosecutors presented at the tech titan's antitrust trial on Wednesday.

Later in the day, the court heard from Jay Friedman, CEO of the Goodway Group, who shed light on the advertiser side of the market. Friedman testified that Google’s AdX has been the only exchange his company has not been able to negotiate fees with, even though its rate is higher than others. “We were told it wasn’t an option,” he said.