Leigh Leopards and St Helens have served up a sensational Challenge Cup semi-final at Warrington Wolves’ Halliwell Jones Stadium.

It was a basic contest but in the best possible way. The best way to describe it would problem be the unstoppable force meets the immovable object.

St Helens rolled Leigh down field magnificently and have had the better of territory and possession from minute one of the game and for the entire first half.

Joey Lussick, on what could be his final appearance for the Saints before a move to the Parramatta Eels, scored the only try of the first half as he burrowed over from close range under the sticks.

He has been a special player in the game nailing the biggest 40/20 you will see from inside his own 20 all the way to Leigh’s 10.

Leigh hung in there brilliantly with a magic tackle from Josh Charnley on Tommy Makinson.

However, they have made it hard for themselves with what Kevin Brown has called “brain explosions.”

Brown said on BBC: “I don’t know why he has done that to be honest kicking through a backrower on the fourth tackle.

“I think that shows a bit of panic maybe. Bit surprise to see that from Jack Hughes. He is very experienced and really cool and collected so that is a bit of a brain explosion from him.”

He was later critical of Tom Amone: “That’s just a brain explosion from Tom Amone, a minute to go before halftime you don’t need to do that.”

Jamie Jones-Buchanan echoed this: “I think it is that experience level. St Helens are sticking to their processes, it has been almost perfect in terms of processes.

“For Leigh it is just about experience. I think it has been mentioned a few times that there has been a few brain explosions from their less experienced players.”

However, Leigh have hung in there despite these mishaps and the pressure from St Helens.

And because of their composure after these moments and especially in the second half they defeated the World Champions and are now headed to Wembley where they could meet rivals Wigan Warriors.