Joel Matip is a Cameroonian centre-back who plays for Liverpool. Although he was born in Germany, Matip is a Cameroon international. The defender began his career with VFL Bochum, playing for several of their youth teams, but eventually moved to Schalke in 2000, who he made his professional debut for. In October 2009, Matip appeared for Schalke 04 II for the first time and went on to make his first team debut the next month. Matip agreed to leave Schalke for Liverpool on a pre-contract agreement in 2016.