As of the latest available data, there is no widely recognized record of a soccer player named Ivan Ondruška who played for FC Nitra or any other professional club. It's possible that Ivan Ondruška might be an amateur player, a youth player, or simply someone who hasn't gained significant media attention. If you have any more details or if there might be a spelling variation in the name, please check again. For notable players, you can often find statistics and career details through official club websites or sports news outlets.