Tribune plans to sell Cubs after season

~ Analysts say the team could go for more than $600 million.

CHICAGO -- Tribune Co. said it plans to sell the Chicago Cubs at the end of the 2007 baseball season, putting one of its most valuable assets on the block as it simultaneously announced Monday that real estate magnate Sam Zell was acquiring the media conglomerate.

Analysts have estimated that the Cubs could fetch $600 million or more. Tribune bought the team in 1981 for $20.5 million.

"The Cubs have been an important part of Tribune for more than 25 years and are one of the most storied franchises in all of sports," said Dennis FitzSimons, Tribune chairman, president and chief executive officer. "In our last season of ownership, the team has one mission, and that is to win for our great fans."

Tribune said the company's 25 percent interest in Comcast SportsNetChicago would be part of the sale package.

The Cubs' strength as a sports franchise -- and the lure of potentially steering them to their first championship since 1908 -- has attracted the interest of many potential buyers. Billionaire entrepreneur Mark Cuban, actor Bill Murray and columnist George Will are among those rumored to have interest, along with numerous Chicago business figures.

Speculation that the struggling Tribune Co. might sell the Cubs ramped up last fall when it put itself up for possible sale, under pressure from disgruntled shareholders. It intensified with the club's offseason spending spree, including signing outfielder Alfonso Soriano to an eight-year contract for $136 million ..

Tribune had said for months that it would focus first on a sale of the entire company before considering selling individual pieces, which also include 23 television stations and 11 newspapers, including the Chicago Tribune, Los Angeles Times, Newsday and eight other dailies.

That sale was announced Monday morning when it said it had agreed to a complex deal in which Tribune will go private and billionaire Zell will invest $315 million in the deal.