NEW YORK, NY and FORT LAUDERDALE, FL (September 5, 2002) - Westwood One, Inc., (NYSE:WON), America's largest radio network, and SportsLine.com, Inc., (NASDAQ:SPLN) a leading Internet sports media company and publisher of CBS SportsLine.com (http://cbs.sportsline.com), announced today that they have extended their programming and promotional agreement.

SportsLine.com will continue to leverage its existing sports content and programming resources to produce sports feeds several times a day for Westwood One/CBS Radio Sports affiliates, as well as a combination of exclusive pre-game, halftime and post-game updates and scoreboard reports for Westwood One/CBS Radio Sports' coverage of live sporting events. These events include NFL football, NCAA regular season football, NCAA regular season basketball, championship boxing, the U.S. Open and Masters golf championships and Notre Dame football.

In addition, Westwood One will continue to broadcast two weekly SportsLine.com-produced NFL radio programs on Sundays during the season: "NFL Today," which previews that day's NFL action, and "NFL Sunday," a program airing Sunday nights and providing highlights from the day's games.

Audio and multimedia content that SportsLine.com produces for Westwood One/ CBS Radio Sports will also be available on the CBS SportsLine.com Web site.

In exchange, SportsLine will receive a variety of on-air promotional mentions for CBS SportsLine.com programming, products and services on Westwood One/CBS Radio Sports broadcasts throughout the year.

"We've enjoyed a great relationship with Westwood One over the past three years and we are pleased to be able to continue showcasing our programming assets through another medium," said Mark Mariani, president of sales and marketing for SportsLine.com, Inc. "This extension ensures the continued relationship of the premier Internet sports content company with America's foremost sports radio network."

"As America's leader in sports programming on radio, Westwood One is proud to extend our relationship with America's leader in sports content on the Internet," said Larry Michael VP Sports Programming for Westwood One. "Together, we make a great team."

About Westwood One, Inc.
Westwood One (NYSE:WON) provides over 150 news, sports, music, talk, entertainment programs, features, live events and 24/7 Formats. Through its subsidiaries, Metro Networks/Shadow Broadcast Services, Westwood One provides local content to the radio and TV industries including news, sports, weather, traffic, video news services and other information. SmartRoute Systems manages traffic information centers for state and local departments of transportation, and markets traffic and travel content to wireless, Internet, in-vehicle navigation systems and voice portal customers. Westwood One serves more than 7,700 radio stations. Westwood One is managed by Infinity Broadcasting Corportation.

About SportsLine.com, Inc.
SportsLine.com, Inc. (NASDAQ:SPLN) is at the leading edge of media companies providing Internet sports content, community and e-commerce on a global basis. As the publisher of CBS SportsLine.com and the official Web sites of the NFL and the PGA TOUR, the Company serves as one of the most comprehensive sports information sources available, containing an unmatched breadth and depth of multimedia sports news, information, entertainment and merchandise. SportsLine.com also serves as a primary sports content provider for America Online.

For further information, contact: SportsLine.com Inc. — Corporate Communications — (954) 489-4000 Larry Wahl – Ext.7225 Alex Riethmiller – Ext. 7535