ARCADIA, Calif. (AP) Horses pre-entered in the 14 Breeders' Cup races at Santa Anita are facing drug testing ahead of racing's richest event.

Horses will be selected randomly for testing from the pre-entry lists to be released a week from today, according to the California Horse Racing Board. The races will take place on the 24th and 25th of this month.

The testing will specifically target blood-doping agents that are typically administered days or weeks before competition and are not usually detectable in testing traditionally done shortly after the race.

The Breeders' Cup will help the board with the collection of samples from pre-entered horses before their arrival in California.

(Copyright 2008 by The Associated Press. All Rights Reserved.) APNP 10-07-08 1248CDT | save this article / add to your favorites list