ALBANY, Calif. (AP) A 3-year-old filly died Tuesday during training at Golden Gate Fields, making it the fifth thoroughbred fatality at the Northern California racetrack this year. (MORE)

LEXINGTON, Ky. (AP) Three prominent Kentucky horse farms challenged a rule Tuesday aimed at limiting the number of mares that a thoroughbred stallion breeds each year, calling it an anti-competitive restriction that threatens to disrupt the breeding industry. (MORE)

RIYADH, Saudi Arabia (AP) Mishriff powered home to wear down American ace Charlatan on Saturday and win the world's most valuable horse race, the $20 million Saudi Cup in Riyadh.

The first prize was $10 million. (MORE)

ALBANY, Calif. (AP) A 4-year-old filly died at Golden Gate Fields on Thursday, the second thoroughbred to die at the Northern California racetrack in two weeks. (MORE)

LEXINGTON, Ky. (AP) Qualifying races for this year's Breeders' Cup will be run without the antibleeding medication Lasix in the world championships' attempt to move toward the elimination of race-day medications. (MORE)

(AP) -- Marshall Cassidy, who served as the New York Racing Association's lead race caller throughout the 1980s, has died. He was 75. (MORE)

ARCADIA, Calif. (AP) Concert Tour won the $200,000 San Vicente Stakes by a half-length over Freedom Fighter on Saturday at Santa Anita, giving Hall of Fame trainer Bob Baffert a 1-2 finish of Kentucky Derby hopefuls. (MORE)

PASADENA, Calif. (AP) Julio Canani, who trained three Breeders' Cup winners and thoroughbred racing's 2-year-old Eclipse champion filly in 2004, died Friday after a long illness. (MORE)

LOUISVILLE, Ky. (AP) Gamine has been disqualified from a third-place finish in last year's Kentucky Oaks and Hall of Fame trainer Bob Baffert fined $1,500 after a post-race test showed the filly had an anti-inflammatory in her system.

Kentucky stewards issued their ruling Jan. 30 and it was posted on the Kentucky Horse Racing Commission's website this week. Baffert waived his right to a formal hearing before the stewards. (MORE)

LOUISVILLE, Ky. (AP) Essential Quality, winner of the Breeders' Cup Juvenile and last year's 2-year-old champion, is among 326 3-year-old thoroughbreds made eligible during the early nomination period to compete in this year's Kentucky Derby, Preakness and Belmont stakes. (MORE)