Morgan Knowles could lift rugby league's Challenge Cup at Wembley Stadium this afternoon when St Helens face Castleford Tigers.

The Barrovian has been included in Saints' 21-man squad for the Wembley showpiece, which is set to kick off at 3pm.

Coach Kristian Woolf has also kept a place for Matty Lees, who returned to action last week following a three-month absence with a broken ankle, while Sione Mata'utia is suspended after picking up a ban against Wakefield.

Speaking to the St Helens Star, Woolf said: “This is a Grand Final week – it is different because it is in the middle of the season and in the back of our minds we know when we finish on Saturday we will have to re-focus for the rest of Super League and a lot if games over a short period.

“But we have single focus at the moment – and that is the Challenge Cup.

“We have to get our preparation right, make the most of every single point of that preparation and lets enjoy it because that is when we play at our best."

He called for his 'big players' to perform at their best in the clash as they look to bounce back from their last visit to Wembley, which was a defeat.

“You have to reflect on what went right or wrong when we were last here," he said.

“It was only a couple of years ago and I know Justin made some changes from how they prepared for Wembley and then the Grand Final.

“Those changes were successful for him and the team.

“That is something we spoke about last year with our preparation before the final and conversations we have had again this time.

“It is looking at what worked for us last year and what is different to what they did in 2019 at Wembley.

“We have made a number of adjustments and put a number of things in place that will have us at our best on Saturday.

“The strength of our group is that there is more than 17 who deserve to be in the 17 and at the end of the day we need to pick the best team.

“Emotion needs to go out of that decision and it needs to be about the best 17 to win this game at the weekend and that’s what we will do.”

The full Saints squad: 1. Lachlan Coote, 2. Tommy Makinson, 3. Kevin Naiqama, 4. Mark Percival, 5. Regan Grace, 6, Jonny Lomax, 7, Theo Fages, 8. Alex Walmsley, 9. James Roby, 10. Matty Lees, 11. Joel Thompson, 13, Morgan Knowles, 15. Louie McCarthy-Scarsbrook, 16. Kyle Amor, 17, Agnatius Paasi, 18. Jack Welsby, 19, Aaron Smith, 20, Joe Batchelor, 21. Lewis Dodd, 22. Josh Simm, 25. Dan Norman.