“The season’s been tough for us recently, especially after how well we started,” Riley said.
“The Cup’s different to the league, form doesn’t really matter given that it’s a one off game in a do-or-die situation.
“Home advantage is huge for us too. It’s a traditional ground where the fans are on top of the pitch which Leigh won’t be used to.
“Hopefully we’ll play well enough to get in the draw for the next round.”
Riley has enjoyed considerable personal success in the Challenge Cup, winning it three times with his former club Warrington.
“On a personal level, I’ve been there and done it, so I know what it’s all about to win the Challenge Cup on the biggest stage,” he said.
“Being a Warrington lad made it even more special as well; even better to score. We know all about Leigh and what they will throw at us. They’re a good side so we know it’s not going to be an easy game.”