Iranian holder of powerlifter and strongman title, Rouhollah Dadashi, was killed in Iran's northern city of Karaj, Mehr news agency reported on Sunday.
Dadashi was attacked and stabbed to death on 16 July 2011 by three young men. The murderers escaped from the scene by a car, said the report.
Dadashi participated five times in Iran's Strongest Man competitions and could reach the final of all of them and became the champion in two of them in 2009 and 2010.
The police has started investigations into the murder of the 30- year-old champion, according to Mehr.