The 20-year-old has refused to rule out a move to England one day.
"I like English football. I like the Premier League of course - it's one of the best leagues in the world," he told the BBC.
"You have big clubs like Arsenal, Manchester United and Chelsea - of course it's a big dream to play for one of them. I have my favourite team, but at the moment I'm at Schalke. I don't want to talk about other clubs.
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