Facing Olympiakos in the Champions League on Tuesday, David Moyes has called upon his ‘match-winners’ to reignite the flagging campaign of Manchester United.

What would have been a fantastic partnership that would have formed the back-bone for United’s campaign this season has turned into a source of frustration for David Moyes as Wayne Rooney and Robin Van Persie struggle to stay fit for the rest of the campaign.

Speaking with the press ahead of the Champions League fixture, Moyes has reportedly challenged his ‘big-game players’ to step up their game and rescue United’s disappointing  campaign this season.

“They’re (Wayne Rooney and Robin Van Persie) both vital to a lot of things we do. They’re both excellent players and our record with them is better than without them, for sure. They’ve both got themselves back into great shape and both are goalscorers. They score in the big games and make the big moments.”

Speaking ahead of United’s away fixture against Olympiakos in the Champions League Round of 16, Wayne Rooney declared that winning his second Champions League trophy will be the perfect way to celebrate his newly-signed ‘big-money’ 5 and a half year contract.

Putting an end to all speculation regarding his future, Wayne Rooney recalled his first Champions League medal saying that one medal is never quite enough.

“You always want to win it. One is never enough, especially at this club. You have to keep trying to get into the final when you are at this club.

“The feeling you get when you win it is incredible, so there is no way that you want to stop. If we can go to the final then it would be great for us. It would be an opportunity to win another trophy, and hopefully we can do that.”

The England striker also spoke about his partnership with Robin Van Persie and his frustration with the injuries that has plagued both the strikers.

“Robin is a fantastic player, one of the best goalscorers in world football. We’ve both had injuries at the same time this season but hopefully we can stay fit. When we are both playing we will score goals but we have other forwards coming in as well.”

“I think it’s important we play well and that will bring other players around to play well as well.”

Trailing miserably in England, Manchester United’s only hopes of winning a silverware lies in their ability to win the Champions League this season. Competing for the fourth position in the Premier League, United will be looking to win the European crown in their bid to keep their Champions League spot next season.

Talking about Chelsea’s triumph in 2012, Rooney spoke about the unpredictable nature of the tournament while reinstating his club’s position who face a relatively easier fixture on Tuesday.

“The year Chelsea won it, they nearly went out of the competition about three times. We’ve been excellent in the Champions League this year and hopefully we can take that into the game (on Tuesday night) and that will help us get the result. We’ve got quality in the team to go far, so hopefully we can do that.”