Dallas Cowboys are world's most valuable sports franchise

The Dallas Cowboys are the most valuable sports franchise in the world at a worth of $4 billion, according to Forbes magazine.

America's Team heads the list of NFL teams for the ninth consecutive year and is first overall among all sports teams for the first time since 2007. The Cowboys made a record NFL revenue of $620 million last season.

The Cowboys surpassed soccer franchise Real Madrid for the overall lead; Madrid was estimated in July to be worth $3.26 billion. The New York Yankees stood third at $3.2 billion when Forbes ranked baseball teams in July.

Super Bowl champion New England is second among NFL teams at $3.2 billion, and the Washington Redskins are third at $2.85 billion. The New York Giants ($2.8 billion) and San Francisco 49ers ($2.7 billion) round out the top five in the NFL.

The Buffalo Bills are last on the NFL list at $1.4 billion.

The Los Angeles Lakers took a shot at a player with past troubles, signing center Robert Upshaw to a multiyear contract.

The 7-foot Upshaw led the nation with 4.5 blocked shots per game until his dismissal from the University of Washington's team last season. He went undrafted after leaving school two years early.

• The Virginia medical examiner's office said Hall of Fame basketball player Moses Malone died of natural causes. Malone's cause of death was listed as hypertensive and atherosclerotic cardiovascular disease. Malone was found dead in a Norfolk hotel Sunday morning. He was 60.

• The Milwaukee Bucks extended the contract of General Manager John Hammond through the 2016-17 season.

Toronto will not bid to host the 2024 Summer Olympics.

An official with knowledge of the decision said late Monday that Canada's largest city is going to stay out of the race.

Mayor John Tory is scheduled to announce the decision at a news conference Tuesday morning. He had until Tuesday to write a letter to the International Olympic Committee to express interest.

Boxing: Australian Davey Browne Jr. died of a brain injury suffered in Friday's IBF superfeatherweight regional title bout in Sydney against Carlo Magali of the Philippines. He was 28. Browne was knocked out 30 seconds from the end of the final round of the 12-round bout.

Soccer: Seattle Sounders central defender Roman Torres will miss the rest of the MLS season after suffering a knee injury last weekend against San Jose.

Sprint Cup racing: Hendrick Motorsports announced that Lowe's has extended its full-season primary sponsorship of driver Jimmie Johnson and the No. 48 team for two years, through the 2017 season. Johnson and Hendrick also agreed to a two-year extension of their deal, also through 2017.

Formula One racing: Billowing smoke from Indonesian forest fires has worsened Singapore's air pollution, raising concern among organizers of this weekend's Formula One night race. A decision on whether it is safe to race will be made by Friday, when practice begins.