The Arsenal star who could dump Manchester United out of Europe

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Olympiacos will host Manchester United in the Champions League tomorrow night, but an injury crisis could force an Arsenal loanee into the spotlight.

The Greek side face a tough test against David Moyes' side, as the Red Devils are unbeaten in Europe this season, but will be hopeful of piling more misery on the United boss on Tuesday, with the former Everton boss enduring an indifferent first season in the Old Trafford hot seat.

But their hopes of gaining a considerable first leg advantage have been dealt a blow with a striker crisis developing. Top goalscorer Kostas Mitroglou was sold to Fulham on deadline day, whilst his replacement Nelson Haedo Valdez, who arrived on loan from Al-Jazira, has already suffered an injury that will reportedly rule him out of the game. Former Barcelona striker Javier Saviola is also missing due to a thigh injury, leaving 21-year-old Michael Olaitan to lead the line.

Yet one man who could see expectation on him rising ahead of the game is Joel Campbell – who is of course on loan at Olympiacos from Arsenal.

The pacey forward is in Greece for the season – his third consecutive season away from the Emirates Stadium having completed loan spells with Lorient and Real Betis in recent years too. He has yet to play a first-team game for the Gunners, and speculation had suggested that Arsenal were in the process of selling the 21-year-old – but could a strong display against United be enough to change their mind?

Campbell has primarily played on the right wing for Olympiacos this season, but has hit seven goals in 24 games – which will make him a key player in their bid to dump United out of the Champions League. Campbell has to prove that he is worthy of a starting role for Costa Rica at the World Cup this summer, and a big performance in the Champions League will do wonders for his cause.

With Valdez, Saviola and of course Mitrogolou unavailable, there will be an increased reliance on goals from other sources, and Campbell looks set to be one of those players that Olympiacos will look towards – and whilst Arsene Wenger will secretly be hoping that his loan star dumps United out of the Champions League, this game could shape Campbell's immediate future at club and international level.

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