Natapradja was again named to the 42 man Indonesian training squad in preparation to the 2009 A5N tournament became the starting tight head prop for that series. Indonesia would ultimately lose matches against Guam and Iran, finishing in last place. He would go on to play four more matches for the Rhinos in 2010 and 2011, and named captain for the 2011 A5N tournament in which Indonesia beat Pakistan in a battle for third place.
