Wirtz had grown up in a family that refused to compromise his development, nor that of his sister Juliane, who plays for Werder Bremen. His father Hans remains the chairman of Grun-Weiss Brauweiler, Wirtz's childhood was framed around the local football team. He grew up with a ball attached to his feet.

Liverpool has agreed to pay a transfer fee of 116 million pounds ($157 million) for attacking midfielder Florian Wirtz from Bayer Leverkusen.