Trainer Art Sherman is confident the "awesome" California Chrome can claim a first Breeders' Cup Classic victory at Santa Anita Park on Saturday.
The five-year-old superstar has won six consecutive races and is set to go off as the odds-on favourite on the famous dirt track in California this weekend under Victor Espinoza.
California Chrome, the highest rated horse in the world, won the Kentucky Derby and Preakness Stakes two years ago, then went on to add the Dubai World Cup to his long list of honours back in March.
He was third in his only Breeders' Cup Classic appearance in 2014, but veteran handler Sherman expects a stronger showing this time around in the richest race ever run in North America.
The Brooklyn-born Sherman said: "He's more mature, bigger, stronger, and you can see it in the way he's running. He's pretty well focused. He's kind of awesome to watch, to be honest with you."
California Chrome will go out from stall four for the mile-and-a-quarter Grade One race - which is the main event in a two-day meeting starting on Friday.
Arrogate should prove to be the strongest contender to deny the favourite in a field of 10 for the $6million Breeders' Cup Classic.
The three-year-old colt, trained by Bob Baffert and ridden by leading Breeders' Cup jockey Mike Smith, won the Travers Stakes at Saratoga in August by 13 lengths and smashed the course record in his first stakes start.
Baffert, who claimed last year's Classic with Triple Crown winner American Pharoah, said: "If the horses are doing well that's more important than the post and this horse is doing well,
"We're all up against it [against California Chrome] but we don't know how good Arrogate is. We haven't set him down yet."
The Kiaran McLaughlin-trained Frosted would appear to be the best of the rest.