Kammala wannan jumla: A lokacin da ya fi kwarewa, Ribli ya kasance dan takarar sau biyu a gasar zakarun duniya, a
1984 da kuma 1986. A London a shekarar 1984, ya halarci babban wasan tsakanin USSR da Sauran Duniya, inda ya kayar da takwaransa na Soviet, Rafael Vaganian da karancin nasara.