Klasnić, who played 41 times and scored 12 goals for Croatia, accepted the invitation, HNS said.
One of Klasnić's most memorable goals is the one against Turkey in extra time of the Euro 2008 quarter-final, a competition he arrived at after a kidney transplant.
As a player, Klasnić left a deep mark in Germany, where he started his career in St. Pauli, which he helped to gain promotion to the first division of the Bundesliga in 2001. He then moved to Werder Bremen where he was one of the key players in Werder's 2003/04 double crown campaign, scoring 13 goals. He completed his club career in Nantes, Bolton and Mainz.