Manchester United transfer targets - in pictures
€4m back in 2011, but is likely to command a much higher transfer fee this time around. Gundogan is also attracting the attention of Bundesliga rivals Bayern Munich so is unlikely to stay at the Signal Iduna Park for long.
Name: Harry Kane
The lanky striker from Chingford, who joined Spurs at the age of 11, enjoyed an astonishing breakthrough season in 2014-15. He began the campaign as an unheralded reserve of who little was expected and ended it with 31 goals and the young player of the year award. Despite not breaking into the team until the autumn, he scored 21 Premier League goals, equalling the club record, and even found time to make his England debut, and, unsurprisingly, scored within seconds of coming on.
he elegant centre-back has been a mainstay for Real Madrid and Spain for a decade.