With regard to Curlin’s performance in Dubai, it should be noted that the horses he faced over there were incredibly sub-par. indicative of the state of the older male dirt handicap division this year. Both “races” were nothing more than well paid public workouts. With the retirement of so many of last years top 3 year olds including Street Sense, even a temporally steroid free Curlin could beat the plugs he faced there in a $4M race. This was a smart tactical move by his connections since the BC is in California this year on a synthetic surface in a state that will soon ban the presence of anabolic steroids in a horses’ blood on race day. IMO, there is little chance Curlin will race in the BC classic. Steve Assmussen, Curlin’s trainer and Rick Dutrow, Big Winstrol’s trainer, both annually vie for the title of top “super drug trainer”. Just Google their names if you want to read about their sordid histories, replete with many suspensions for administering performance enhancing drugs to their horses.
The one agonizing aspect of the Belmont is the mystery surrounding Big Brown's performance. We've heard many theories, and that is what they will remain. No one will ever know for sure why a horse that personified perfection suddenly came apart at the seams. Was it the deep track, the stifling heat, getting rank early in the race, the traffic and bumping going into the first turn, acting up in the holding barn, missing four days of training, possibly being dehydrated, sweating between his legs and not much on his body, breaking awkwardly, possibly getting spooked by the starter in a blue jacket and white pants standing right on the racetrack,? It likely was a combination of occurrences that led to his shocking performance. 
The Story: In February 2005 Canseco released his autobiography and steroid tell-all, Juiced , Wild Times, Rampant 'Roids, Smash Hits, and How Baseball Got Big. In it he described himself as 'the chemist' having experimented on himself for years. He claimed to have educated and personally injected many players including Mark McGwire, Rafael Palmeiro, Juan Gonzalez, Ivan Rodriguez, and Jason Giambi. In his second book, Vindicated , Canseco added Magglio Ordonez to the list of players he had educated and injected with steroids. He also said he introduced Alex Rodriguez to a trainer/PED supplier after Rodriguez had asked where he could get steroids.