Ilkay Gundogan will be on the top of many clubs' shopping list when the transfer window opens.
The German midfielder has been sidelined after suffering from an inflamed nerve in the back. It has been a major blow for Borussia Dortmund, whose midfield play has looked sluggish and lacklustre this season.
Gundogan has been at Dortmund since 2011, and was always one of the first names on the team sheet for manager Jurgen Klopp. He was instrumental in Dortmund's Bundesliga success in 2011, and is known for his passing abilities and technical qualities and fits in perfectly as a central playmaker.
Barcelona, Real Madrid and Manchester United are said to be interested in Gundogan. It is rumoured that Real Madrid already have a 'deal in place' for the talented midfielder (MARCA) and could be looking to swoop in and seal a proven talent in midfield, despite already signing Asier Illaramendi.
Manchester United's midfield woes are common knowledge, and summer recruit Marouane Fellaini has done little to live up to the expectations of the Old Trafford faithful. Signing Gundogan would be a statement of intent from David Moyes, who has his fair share of critics this season.
Barcelona could be looking to seal a replacement for long-serving midfielder Xavi Hernandez, and Gundogan would be a major signing for Tata Martino.
The 23-year-old has fuelled rumours that he will indeed leave Dortmund, as he has not agreed to a contract extension to keep him at Signal Iduna Park. He will surely stir up a bidding war, with all of Europe's biggest clubs looking to win.
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