Kentucky Derby packed with 22 horses entered

LOUISVILLE, Ky. - A total of 22 horses have been entered for Saturday's Kentucky Derby, two more than the maximum allowed field of 20.

The entry box closed Wednesday morning, with the draw to determine post positions set for later in the afternoon. The field is limited to the top 20 horses based on earnings in graded stakes races.

Pants On Fire enters Derby hot with female rider
Zayat returns after bumpy year
Dialed In, Uncle Mo lead field

Leading the way is Uncle Mo, who is being treated for a gastrointestinal infection. Owner Mike Repole has said if the colt isn't sufficiently recovered, then he won't run in the 1¼-mile Derby.

Uncle Mo galloped Wednesday and later stood in the starting gate to familiarize himself with the surroundings.

Pictures: 2011 Kentucky Derby
How to make mint juleps

Other entries for the 137th Derby are Florida Derby winner Dialed In, Arkansas Derby winner Archarcharch and Comma to the Top, runner-up in the Santa Anita Derby.

Other horses entered are Louisiana Derby winner Pants on Fire, Santa Anita Derby winner Midnight Interlude, Soldat, Brilliant Speed, Irish import Master of Hounds, Twice the Appeal, Nehro and Mucho Macho Man.

Female jockey rides for Kentucky Derby history
Video: Female jockey strives to make Derby history

The rest of the entries are Decisive Moment, Animal Kingdom, Stay Thirsty, Santiva, Watch Me Go, Shackleford, Twinspired, Derby Kitten, Sway Away and Ruler On Ice.

Sway Away and Ruler On Ice are long shots to make the field since their earnings weren't enough to make the top 20. They would need two other horses to be withdrawn for both to get in. Sway Away was fourth in the Arkansas Derby, and Ruler On Ice was third in the Sunland Derby.