The 19-year-old has recently been strongly linked with the likes of Arsenal, Real Madrid and Bayern Munich in recent weeks.
“Nothing can happen in January. It’s not a problem. Arsenal is only about 10 per cent of what is written in Germany, so it’s not a problem,” said Klopp.
“Apparently, Bayern Munich are interested in him. He scored one against Bayern Munich and I will be happy if he wins against Arsenal.
“Nobody buys a player from Borussia Dortmund just like that. Not even Arsenal.
“Luckily, his focus is not an issue. He’s very relaxed about that.”