Having already been odds-on, Baaeed will now be extremely prohibitive odds to make it nine from nine against six rivals.
But owners Godolphin confirmed on Monday morning that Coroebus would not head for the Sussex Downs, posting on Twitter: "Unfortunately Coroebus will not run in this week's Sussex Stakes @Goodwood_Races.
"He was lame in his box this morning and after examination, was found to have an abscess in his left hind pastern. This is being treated and he will now target the Prix Jacques le Marois."
Last year's winner Alcohol Free returns to defend her crown for Andrew Balding off the back of winning the July Cup at Newmarket, while Aidan O'Brien saddles Breeders' Cup hero Order Of Australia, who was last seen registering back-to-back wins in the Group Two Minstrel Stakes at the Curragh.
Japanese hopes are carried by Bathrat Leon, who makes his first competitive appearance since causing a shock in the Godolphin Mile on Dubai World Cup night at Meydan in March.
In the absence of Coroebus Charlie Appleby relies on Modern Games, with Chindit (Richard Hannon) and Angel Bleu (Ralph Beckett) completing the field.