Career
He was a strong player with a decent header and good sense of positioning. Larsen started his professional career at Danish club Køge Boldklub in Køge, Denmark. In 2001, he was sold to multiple Danish championship winners IF in the top-flight Danish Superliga.
He was sent on loan to fellow Danish club BK Frem by thenmanager Michael Laudrup.
In 2004, he was sold to Swedish club, playing just two matches before being sidelined for the remainder of 2004 with a groin injury. After a two-month-long controversy Larsen was sold to German football club Football Club Schalke 04 on 31 July 2005, signing a four year contract.
At Schalke 04, he earned the nickname "Der Dänische Joker" (The Danish joker), "The Blonde Bomber" and "Die Waffe" (The weapon), referring to his ability to come on as a substitute and score the game-tying or -winning goal. He was, however, not able to keep up the good performances due to injuries, and he later lost his place in the Schalke team
He became federal up with his role on the bench and decided to look for a new club
On 18 July 2008, he moved to Toulouse as a replacement for the outgoing Johan Elmander. Larsen scored five goals in ten games and returned to Toulouse. In 2011 he moved to Feyenoord on loan.
On 12 July 2011, despite having two years remaining on his contract, he left Toulouse by mutual consent.
On 13 July 2011, he signed a three-year contract with the Danish Superliga side AGF Aarhus, and made his debut appearance for the first team only five days later, at home against Lyngby Boldklub. On 30 July 2011, he scored his first goal, an important equalizer in the 2-2 draw home against Odense BK. Division side Blokhus Football Club. On 18 February 2014, he announced that he would be retiring immediately due to a knee injury.
He continued his good form by sensationally scoring six goals in his first five national team matches from June to September 2005. Larsen was named in Olsen"s final 23-man squad for the 2010 World Cup in South Africa.
Larsen has scored eleven goals in 20 games for Denmark.
Club Scores and results list Denmark"s goal tally first.