Yahoo Inc on Tuesday said it had signed a search advertising deal with Google Inc, providing a potential boost to its CEO Marissa Mayer's efforts to turn around the company, which also reported revenue and profit that fell short of market estimates.The deal with Google, a unit of Alphabet Inc, builds on an existing search partnership Microsoft Corp under which Yahoo gets a percentage of revenue from ads displayed on its sites.

Yahoo, whose shares were down 1.6 per cent in after-hours trading, said the companies have agreed to delay implementation of the deal in the United States to allow the antitrust division of the Department of Justice to review it.Yahoo has been struggling to boost revenue from ad sales in the face of stiff competition from Google and Facebook. The Google deal was one of the few bright spots included in the company's third-quarter results statement.
Yahoo said it expected fourth-quarter revenue of $1.16 billion-$1.20 billion, well below the average analyst estimate of $1.33 billion, according to Thomson Reuters.