Excess Knowledge, Galileo Rock and Leading Light are among 14 confirmations for the Ladbrokes St Leger at Doncaster on Saturday.
A year ago the Triple Crown-seeking Camelot was all the rage for the world's oldest Classic, but he suffered a shock defeat at the hands of Godolphin's Encke.
This season's renewal has a far more open look to it, with Excess Knowledge and Galileo Rock disputing favouritism with most bookmakers.
Excess Knowledge earned his place in the field when narrowly denied in a thrilling Gordon Stakes at Glorious Goodwood and aims to give trainer John Gosden a fifth St Leger victory.
The Clarehaven maestro also has Bahrain Trophy winner Feel Like Dancing still in the reckoning.
Galileo Rock would not be winning out of turn, having been placed in both the English and Irish Derby for trainer David Wachman.
Leading Light, who completed a four-timer in the Queen's Vase at Royal Ascot, is one of three possible runners for trainer Aidan O'Brien.
The Ballydoyle handler, who has previously won the Leger with Milan (2001), Brian Boru (2003) and Scorpion (2005) also has Eye Of The Storm and Foundry engaged.
Godolphin are also strong-armed with Gordon Stakes winner Cap O'Rushes, Libertarian and Secret Number all in the mix.
Epsom Oaks winner Talent is another contender for trainer Ralph Beckett.
Great Hall, Havana Beat, London Bridge and Ralston Road complete the list of possible runners.
Five horses - Dashing Star, Dabadiyan, Plinth, Renew and Willie The Whipper - were removed at the latest entry stage.