Ben Barba sends Super League leaders St Helens into the Challenge Cup quarter-finals with a hat-trick of tries at Castleford.
- FT: Castleford Tigers 18-36 St Helens
- Copyright: SWpix.com
Castleford make two changes from the side which lost 36-12 at Hull FC in their previous game for their Challenge Cup fixture against St Helens.
Nathan Massey returns from injury and Jy Hitchcox is available after a loan spell at Bradford, but Cory Aston and James Green miss out.
St Helens name an unchanged squad from the one which beat Catalans.
Ben Barba could feature after injury kept him out of the 17-man squad for the win against Dragons.
Castleford (from): Minikin, Webster, Shenton, Ellis, Moors, McShane, Millington, Holmes, McMeeken, Milner, Massey, Sene-Lefao, Wardle, Foster, Cook, Springer, Trueman, Hitchcox, Watts.
St Helens (from): Lomax, Makinson, Morgan, Percival, Swift, Fages, Smith, Roby, Amor, Taia, Wilkin, McCarthy-Scarsbrook, Douglas, Knowles, Thompson, Peyroux, Richardson, Grace, Barba.
Following today's sixth round match, watch full coverage of the the 1968 Challenge Cup final between Leeds and Wakefield Trinity, which witnessed one of the most dramatic moments ever seen at a major sporting event.
With what looked like the easiest of kicks to win the Wembley showpiece, Don Fox of Wakefield stepped up but somehow missed. Leeds won 11-10, and so began one of the most talked about and replayed scenes of all time in British sport.
Take a look back at that amazing match - which was played in horrific and wet conditions - hence becoming known as the Watersplash Final.Copyright: Rex Features
The BBC will show games from each round of the Rugby League Challenge Cup live on the BBC Sport website and app and on TV in 2018.
One match has been streamed live on the BBC Sport website for the first five rounds of the competition.
For the sixth round onwards, coverage now switches to BBC One and BBC Two every weekend up to and including the final at Wembley on 25 August.
Saturday, 12 May
Castleford Tigers v St Helens
14:00-16:30 BST: BBC One, Connected TV and Online
You can listen to full match commentary from BBC Radio Leeds, BBC Radio Merseyside and BBC Radio 5 Live.
Rugby League Forum
16:25-17:00 BST: BBC Red Button, Connected TV and OnlineCopyright: Getty Images
The Challenge Cup is a knockout rugby league cup competition held annually since 1896, with the exception of 1915–1919 and 1939–1940. It involves amateur, semi-professional and professional clubs.
The teams from the top tier of rugby league, known as the Super League, enter the Cup in the fifth and sixth rounds, with the final of the prestigious competition held at Wembley Stadium.
Despite losing last year’s final, Wigan are the most successful club in the history of the competition, winning the cup a record 19 times.Copyright: SW Pix
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