HOLDERS Warrington will begin their defence of the Challenge Cup against Championship club Featherstone Rovers.
The Wolves, who beat Huddersfield at Wembley last August, will have home advantage in the fourth round on the weekend of April 16-18.
The outstanding tie of the last 32 pits Super League champions Leeds against top-flight rivals Hull at the KC Stadium in a repeat of the 2005 final which was won by the Black and Whites.
The Hull-Leeds tie, which is a repeat of the 1910 final which was won by Leeds, is one of four all-Super League clashes.
Last year’s runners-up Huddersfield are at home to Hull KR, while Wakefield visit Harlequins and Catalans Dragons host Salford.
Wigan meet Sheffield Eagles in a repeat of the famous 1998 Wembley final, while St Helens, who won the trophy four times in a row up to 2008, are at home to Championship club Toulouse, one of four French clubs in the last 32.
Leigh must travel to Limoux while Widnes will be at home to Lezignan providing they overcome amateurs Wigan St Judes in a delayed third-round tie tonight.
Siddal, the only amateur club definitely in the fourth round, have landed a home tie against a Batley side who have Siddal coach Lee Greenwood in their squad!
But there’s no question the tie of the round is Hull v Leeds at the KC Stadium.
"It’s part of the drama of the Challenge Cup that there are some tight encounters and exciting draws," admitted Rhinos coach Brian McClennan.
"We’ll take it one game at a time and that’s all you can do.
"It’s one hell of a challenge, going to Hull and playing them at their ground."