The last 16 of the Challenge Cup gets underway on Friday with three ties including holders Warrington v Swinton. Compare odds
Challenge Cup betting Friday 20 May 2011
Leeds Rhinos v Harlequins RL (20:00 BST)
Salford City Reds v Hull KR (20:00 BST)
Warrington Wolves v Swinton Lions (20:00 BST)
Challenge Cup betting Saturday 21 May 2011
Wakefield Wildcats v Castleford Tigers (14:30 BST)
Widnes Vikings v Hull FC (15:00 BST)
Challenge Cup betting Sunday 22 May 2011
Huddersfield Giants v Catalans Dragons (15:00 BST)
St Helens v Featherstone Rovers (15:00 BST)
Bradford Bulls v Wigan Warriors (15:30 BST)
