The grey son of Galileo took the coveted scalp of Cracksman in the Irish Derby but missed his intended prep race in the Great Voltigeur Stakes at York last month after suffering a slight setback.
Capri spearheads a four-strong team trained by Aidan O'Brien, whose string comprises of Venice Beach, Douglas Macarthur and The Anvil.
The Ballydoyle handler goes to Doncaster in search of a fifth success in the world's oldest Classic.
O'Brien's son Joseph saddles Rekindling just four years after steering Leading Light to Leger glory as a jockey.
Cracksman's trainer John Gosden has four Leger wins to his name and is double-handed this time with Stradivarius and Coronet.
Sir Michael Stoute has a leading contender in Crystal Ocean, who warmed up for his big day with victory in the Gordon Stakes at Glorious Goodwood.
Roger Varian has a fascinating candidate in the progressive Defoe, winner of all his four starts this season, while Brian Meehan is expecting a big run from Bahrain Trophy scorer Raheen House.
Count Octave, trained by Andrew Balding, completes the line-up.
The two withdrawals at the 48-hour final declaration stage were Abyssinian and Air Supremacy, both from the O'Brien stable.