by Julian Shea

Hull KR's Leroy Rivett (left) celebrates Leeds' 1999 Cup win

Wigan's decline has understandably been the talk of Super League this season.

But if the unthinkable happens and the club who won eight straight Challenge Cups are relegated from Super League, another of the game's most famous names could pass them on the way up - Hull Kingston Rovers.

The Robins' fifth-round win over Featherstone saw them assume the mantle of the BBC Sport website's Road to Twickenham team, and was also the 16th of a club record-equalling 17 straight wins under coach Justin Morgan.

Having proved unstoppable in National League One this season, Rovers will face their toughest test so far on Sunday, as they entertain Super League Warrington in the Challenge Cup quarter-final.

But Rovers winger Leroy Rivett, who made history in Leeds' 1999 Challenge Cup final win over London when he scored four tries, says they have nothing to fear.

"We've equalled our record, we're at home where we're confident, so we'll welcome any challenge from the division above us," he told BBC Sport.

"It's tough playing anyone at this stage in the tournament, but we hope we'll be playing games like this every week next season.

It would be absolutely fantastic to get the club into the top flight Leroy Rivett

"As professional athletes you want to test yourselves against the best, that should be all the motivation you need.

"But regardless of who you're playing, it's a chance to get within one game of the final, which is the game everyone in the world wants to play in."

Rivett arrived at Craven Park midway through last season, as did Justin Morgan.

A year ago the Australian coach hit the headlines when he took Toulouse to the last four of the Challenge Cup, and now he stands 80 minutes from repeating the feat with Hull KR.

And Rivett is clearly impressed by what his coach has done so far.

"Justin's brought in some strong signings, but what he's done most is instill a special kind of professionalism thoughout the whole squad," he said.

"His playing days weren't too far from the modern game that we play now, so he can relate to the players, which helps."

For all the excitement of a Cup run, Morgan has made it clear that taking the club into Super League for the first time is his priority.

And that is something that Rivett would love to help bring about.

"It would be fantastic to get the club into the top flight," he said.

"This place is so full of history, people from all over the world know the name Hull Kingston Rovers, so if I can help them get back, it would be one of the biggest achievements on my professional cv."

BBC cameras will be at Craven Park on Sunday to see if Rovers can claim a record 18th straight win, and Rivett says that having attracted so much attention, the team must now justify it.

"We've got all this coverage, so we've got to show the rest of the league that if we do reach Super League, we're a side who will have to be reckoned with.

"We need to prove to ourselves that we can mix it with the top sides in Super League."

Fa'afili's tries have proved important for Warrington this season

One of the people Hull KR will have to mix it with if they want to win on Sunday is Warrington winger Henry Fa'afili.

Under the guidance of coach Paul Cullen, the Wolves have slowly but surely consolidated themselves as a Super League force.

Over the years their progress has been marked out by milestones like the move to the Halliwell Jones Stadium and the loan signing of Andrew Johns.

Fa'afili's 17 tries this season have lifted them to fifth in the Super League table, and he says he feels the club is building towards something major.

"It's been a long time since Warrington have been playing in semis and finals, but now we've got a great coaching set-up and it's really turning the club round," he told BBC Sport.

Cullen's biggest coup yet was signing Johns on a short-term deal last autumn as they pushed for the play-offs.

If everybody does their job, all we've got to do is concentrate on playing our game Henry Fa'afili

And although it ended in defeat at the hands of Hull, Fa'afili says it was all part of the learning process.

"Hull wanted it more than us, so we can only get better and learn from that," he said.

"We've got to kick on and do better than we did last year. Our goal is to start getting to semi-finals, and to go on from there to win things."

Cullen has instilled a great team spirit in his side, and Fa'afili says this could prove the vital factor in what he expects to be a very hard match.

"We're very close, we're all willing to play for one another and if we're going to win, we're going to do it together," he said.

"Hull KR are a team who can't be taken lightly and it won't be easy but if everybody does their job and knuckles down, all we've got to do is concentrate on playing our game.