Hoffenheim winger Jacob Bruun Larsen says he had an "extreme experience" when he had a trial at Liverpool at the age of 13.
The 22-year-old was invited to train at several top European teams as a teenager, including Liverpool, Borussia Dortmund and PSV.
The Denmark international says he found his time with the Reds daunting initially and feels he made the right choice in signing for Dortmund.
Editors' Picks
"I was 13 years old and invited to each club twice. The first trip was to Liverpool.