Joel Matip, a former defender for Liverpool, has announced his retirement from the NFL. Matip, who signed with Liverpool in 2016 on a free transfer, has chosen to conclude his 15-year career after leaving Anfield at the end of the previous season without a club. The 33-year-old began his career at Schalke, where he made … Continue reading After Leaving Anfield, Former Liverpool Defender Matip Announced His Retirement.