Five of the 12 entrants in the Preakness ran in the Kentucky Derby two weeks ago, led by Kentucky Derby winner Super Saver.
With Calvin Borel aboard, Super Saver hugged the rail on a sloppy track and dominated the field in Louisville. Super Saver will come into Saturday's race as the 5-2 morning-line favorite.
After a week of mostly rainy weather, conditions are expected to be ideal for the second leg of the Triple Crown. No horse has won all three races in the Triple Crown series since Affirmed pulled off the feat in 1978. There have been 11 Triple Crown winners overall.
Paddy O'Prado, the third-place finisher in Kentucky, will also be in the field Saturday, as will Looking At Lucky.
Lookin At Lucky went off as the favorite at Churchill Downs and finished sixth.