Legal Right notable Gold Cup absentee A total of 21 horses stood their ground following today`s confirmation stage for the Tote Cheltenham Gold Cup on Thursday.Jonjo O`Neill`s injury-prone nine-year-old Legal Right misses chasing`s blue riband event after being hit by another bout of lameness.A spokesman for O`Neill`s Jackdaws Castle yard said: 'Sadly, he has had a recurrence of the usual problems which have affected him in the past and he will not run on Thursday.'All the leading fancies remain in the Stg£300,000 contest including Looks Like Trouble, who was the last winner of the race in 2000.Ireland has six runners headed by Willie Mullins` pair Florida Pearl and Alexander Banquet. The other four are Foxchapel King, Commanche Court and the Frances Crowley-trained duo Moscow Express and Sackville.Nicky Henderson is set to be represented by Mick Fitzgerald`s mount Bacchanal and good-ground specialist Marlborough, who is due to be ridden by Paul Carberry.Henrietta Knight has a strong hand withBest Mate, Lord Noelie and Go Ballistic in the race.Champion jockey Tony McCoy has the choice of Martin Pipe`s two representatives Cyfor Malta and Shooting Light while Norman Williamson has been pencilled in for Henry Daly`s challenger Behrajan.