One of Australia's best exports - So You Think - will race at Sandown this Saturday, taking on last year's winner of the English Derby and Prix de l'Arc de Triomphe - Workforce.

Coolmore's Australian racing manager has the tough decision of selecting the best ride for the champion, as first choice jockey Ryan Moore is already committed to riding the competition that is Workforce.

Moore had ridden So You Think to victory previously in the Tattersalls Cup and second place in the Prince of Wales at Royal Ascot.

Moore's advantage for the Eclipse at Sandown this weekend aboard Workforce will be having ridden both So You Think and Snow Fairy previously.