Castleford Tigers and Featherstone Rovers were both handed away ties in the Ladbrokes Challenge Cup sixth round.
Last season’s beaten finalists Castleford visit Hull FC and Rovers make the trip to France to play Catalans Dragons.
The other matches are:
Widnes Vikings v Batley Bulldogs
Leeds Rhinos v Huddersfield Giants
Wigan Warriors v Hull Kingston Rovers
St Helens v York City Knights
Wakefield Wildcats v Leigh Centurions
Dewsbury Rams v Warrington Wolves
Ties to be played weekend of May 15-17.