Japan's 2004 Athens Olympic hammer throw champion Koji Murofushi on Saturday welcomed the International Association of Athletics Federations (IAAF) decision to uphold its ban of Russia's track and field team over allegations of doping.

The move prevents Russia's athletes from competing in track and field events at this summer's Olympic Games in Rio de Janeiro, and Murofushi, who won the gold in Athens after Hungarian Adrian Annus was disqualified for a doping violation, insisted it was the right decision.

"From the point of view of athletes that are clean this is the right decision," Murofushi said. "It is good that the Olympics can retain its dignity."