Prior to his coaching career, Knudsen played as both a pre-professional (1992-1998) and a professional (1998-2010) volleyball player in his native country Denmark. He broke into the Danish professional team as a libero in 1998. He has played in many high level tournaments which include the World Cup, European Cup and Olympic Qualification.

In more than a decade of professional experience, Knudsen earned three Danish Professional Volleyball Libero of the Year accolades and was named a runner-up on five other occasions. He played in more than 25 European Cup matches and 15 national team games.

As a libero, Knudsen helped BM Marienlyst win five Danish National Championships, two Danish Cup Championship Gold Medals and two Nordic Championships Gold Medals.

Following playing professionally, Knudsen kicked off his coaching career in 2010 as a volunteer assistant for the American East Conference Champion Albany Great Danes. Knudsen assisted in scouting of the Great Danes’ opponents for the season and coached America East Libero of the Year, Laurie Gonzalez. In 2011, he served as a men’s and women’s assistant at Hannibal-LaGrange University. Knudsen helped the Trojans men’s volleyball team to their first winning season in program history.

Before Centenary, Knudsen served as an assistant coach in both women’s soccer and volleyball at Manchester University, and was the assistant coach at Centenary.