Microsoft has intensified its pursuit of a deal to take over, asking the company to re-enter formal talks, the Post reported on its Web site Friday.
While the two companies have held informal deal talks over the years, the latest approach signals a new urgency on Microsoft's part, the paper said, citing unnamed sources.
The approach follows an offer Microsoft made to buy Yahoo a few months ago, , but Yahoo spurned the advances.
The Post said Wall Street sources put a roughly $50 billion price tag on Yahoo.
The newspaper said the renewedstems in part from Google's recently announced plans , and also fits in a larger, ongoing struggle between Google and .
Microsoft and Yahoo could not immediately be reached for comment.