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Carnegie Challenge Cup Round 4 Draw
The only all Super League tie of the fourth round sees Harlequins RL entertain Castleford Tigers at the Twickenham Stoop.
Holders St Helens were paired with London Skolars, Super League and World Club Champions Leeds Rhinos will have Welsh visitors with the Celtic Crusaders travelling to Headingley Carnegie Stadium.
All four French sides were given away ties Toulouse travel to Bradford Bulls, Pia go to Wigan, Lezigan have the long trip to Cumbria to face Whitehaven and last years runners-up Catalans Dragons visit Featherstone Rovers.
There are also local derbies involving Batley and Dewsbury, Leigh and Warrington and Halifax and Huddersfield.
Batley v Dewsbury
Leigh v Warrington
Workington v Hull KR
Harlequins RL v Castleford (Live on BBC Saturday 19th April 1730 Kick Off)
Doncaster v Widnes
Featherstone v Catalans Dragons
Barrow v Hunslet
Salford v Wakefield (Live on BBC Sunday 20th April 1730 Kick Off)
Leeds v Celtic Crusaders
Swinton v Oldham
Bradford v Toulouse
Halifax v Huddersfield
Whitehaven v Lezignan
St Helens v London Skolars
Rochdale v Hull
Wigan v Pia
The ties will be played on the weekend of April 18-20