Chantilly trainer Freddie Head said: "I thought it was better to wait for Longchamp, where he can run in his garden."
Mastercraftsman has now replaced stablemate Rip Van Winkle as the Aidan O'Brien's No1 for the race and is 9-2 from 6s with Sky Bet. The colt has been eased out from 9-2 to 5s, while Craven Stakes winner Delegator remains 3-1 favourite.