Sarginson, Tomkins & Charnley (2) for Wigan
Gale and Crooks cross for Castleford in second half
Manfredi adds controversial Wigan try
Draw pits Wigan v Hull FC in semi-finals
Hull FC beat Catalans earlier on Saturday
Wigan 12-0 Castleford
This start wasn't in the script for Castleford, who have battled against the injury odds for much of 2016.
They lost centre Jake Webster to a hamstring injury before kick-off - another one to add to a long list they've had this season.
Wigan 12-0 Castleford
Quote MessageSam Tomkins was too quick there. There didn't look like there was much on there, but he does that to a lot of players. He makes it look so easy. It's like he's made of rubber.
Kevin Brown, Widnes captain on BBC Radio 5 live sports extra
Sam Tomkins, goal Matty Smith
Image source, SWPIX.COMTry time again for Wigan, and it's Sam Tomkins for the Warriors.
Ten metres out, he darts past Grant Millington and touches down under the posts.
As Kevin Brown said earlier on BBC 5 live sports extra, this is ominous for Castleford - unless they can sort their defence out. Two missed tackles have led to two tries.
Wigan 6-0 Castleford
Oooh, Luke Dorn was close there. The Castleford full-back tries to dart through a wall of cherry and white shirts and is superbly tackled within sight of the try line.
The Tigers go this way and that looking for a way through, but Grant Millington knocks on.
Wigan 6-0 Castleford
Efficient stuff from Wigan so far, but they give away a penalty on halfway...
Wigan 6-0 Castleford
Quote MessageIt was almost a carbon copy of the break they made in the previous set. Great play. They found Sam Tomkins, then Sarginson, and the rest was pretty simple. Ominous times for Castleford on that left edge.
Kevin Brown, Widnes captain on BBC Radio 5 live sports extra
Dan Sarginson, goal Matty Smith
Wigan score the first try and it's far too easy. The Warriors put forward Ryan Sutton through a huge gap and he breaks clear.
The pacier Sam Tomkins is in support and Tomkins sets up Dan Sarginson for a routine score.
Wigan 0-0 Castleford
A couple of completed sets apiece in the opening stages, without any real threat of a try.
Dom Manfredi stretches his legs on the Wigan right but is tackled 30 metres from the line.
Wigan 0-0 Castleford
The teams are out on the field and, under sunny skies in Wigan, the home side kick us off.
Wigan v Castleford (17:30 BST)
There's just been a really nice feature on the BBC Two coverage about the scoring prowess of Castleford winger Denny Solomona, who already has 24 Super League tries this season.
It's led to some high praise from one of his fellow professionals...
Quote MessageI don't think he's just one of the best finishers in Super League - I think he's one of the best finishers in the world.
Ashton Sims, Warrington prop on BBC Two
Wigan v Castleford (17:30 BST)
Castleford head coach Daryl Powell on BBC Two: "We know how good Wigan can be, they're pretty tough to beat.
"But we can do it. It's all about the performance."
Wigan v Castleford (17:30 BST)
Wigan Warriors head coach Shaun Wane on BBC Two: "We're not playing that well to be honest.
"We can improve. But we aren't short of passion, desire.
"Today we need to turn up against a very competent Castleford team."
Wigan v Castleford (17:30 BST)
Wigan are second in Super League and chasing a record 20th Challenge Cup triumph this season.
Castleford are five places and 11 points below Wigan in the league table. But they have had recent success in this competition, reaching the final two years ago before losing to Leeds Rhinos.
On their way to Wembley, they won at Wigan in the quarter-finals. Can they repeat the feat today?
Wigan Warriors v Castleford Tigers (17:30 BST)
You can watch live BBC Two coverage of this match at the top of this page, by clicking on the play icon.
Radio commentary is also available from BBC 5 live sports extra, Radio Manchester and Radio Leeds above.
Wigan v Castleford (17:30 BST)
Image source, Getty ImagesA big day for Wigan and England full-back Sam Tomkins, who makes his first Challenge Cup appearance since scoring a try for the Warriors in their Wembley win over Hull FC in 2013.
Wigan v Castleford (17:30 BST)
Wigan: S Tomkins; Charnley, Sarginson, Gildart, Manfredi; Williams, Smith; Mossop, Powell, Flower, Sutton, Isa, O'Loughlin.
Replacements: J Tomkins, Tautai, Burke, Bretherton.
Castleford: Dorn; Monaghan, Crooks, Minikin, Solomona; Millington, Gale; Jewitt, McShane, Patrick, Moors, McMeeken, Massey.
Replacements: Milner, Tickle, Holmes, Cook.
Wigan v Castleford (17:30 BST)
Once more unto the breach, dear friends, once more.
Welcome to TV, radio and text coverage of the last Challenge Cup quarter-final of 2016.
Wigan Warriors meet Castleford Tigers for the one remaining spot in the semi-final draw, which will take place immediately after the end of the game at the DW Stadium.
Welcome to live text, radio and television coverage of the Challenge Cup quarter-final between Wigan and Castleford.
Text commentary will begin at 17:15 BST.