Nyorai kupfuurira kweiyi ndima - Gravell akatambawo mitambo 12 nokuda kwechikwata chokukoka chokushanya chevaBarbarians. Kutanga kusarudzwa muna 1975, Gravell akatarisana neAustralia XV pakutanga kwe1976 asati ajoina rwendo rweBarbarian rweCanada gare gare gore iroro kwaakatamba mumitambo mitanhatu. Muna 1977 Gravell akatamba mutambo wake wekupedzisira wevaBarbarians muchikwata chenyeredzi chakatarisana neBritish Lions ya1977
mumutambo worudo wokupemberera Jubilee yeSirivha yaElizabeth II. Kunyange zvazvo Gravell akaguma ari muchikwata chakarasikirwa, akahwina imwe yenhanho nhatu dzevaBarbarians mumutambo waionekwa semutambo wekare.