The 19-year-old has emerged as one of the continent's most exciting young players and has already won comparisons with Lionel Messi.
"Everything works here," he said in an interview with the Bild newspaper. "We have a very good coach (Jurgen Klopp), a team with sensational prospects and we all understand each other.
"Also I have my family, what more could I want?
I know some players who have played abroad. It was not always easy for them. For me that would definitely be too early."