Another player to be released at the end of the 1997/98 season (see also Kori Davis , Joe Green, Rob Newman, John Polston, Jamie Shore, Gaven Tipple ). Karl was an Associate Schoolboy with the Canaries but did not sign trainee forms as he continued his education. He signed professional forms in July 1993 and made his debut in September 1995 against Torquay in the Coca Cola Cup. He was sent off on his debut. Injuries and the form of Neil Adams have limited his opportunities and so was released in May 1998 as an attempt to reduce the wage bill. He had a trial with Northampton in hte summer of 1998 and was offered a six month contract but suffered from hamstring injuries.

The May 1999 edition of Team Talk magazine revealed that Karl had joined non-leaguers Hendon from Witney Town. The November 1999 edition of that magazine stated that Karl had since moved on to join Worthing but no mention of this could be found on Worthing's website.He later played for Hendon in 1999 and Croydon from 2000-2002 gaining promotion to Ryman Premier League. Karl also had a stint as player manager and manager at Sinjun's Grammarians in the AFC league in london.

Karl migrated to Australia in 2005 and now runs a personal training business in Bondi, Sydney training players for sports conditioning ironically!