 Nyora kupfuurira kweiyi ndima - Gros akaberekerwa kuSauze dOulx, mudunhu reTurin mudunhu rePiedmont. Akadzidza kuita ski achiri muduku, nemhaka yaAldo Monaci naAldo Zulian. Pazera ramakore 8, iye akanga ari kwenguva yokutanga ari pachigaro chokukwikwidza chomunzvimbomo. Gros akaita kutanga kwake muWorld Cup aine makore 18 muna Zvita 1972. Mumwaka iwoyo wa1973, akakunda mijaho miviri muVal dIsère naMadonna di Campiglio; ndiye akanga ari mutambi weItaly muduku kupfuura vose vakambokunda mujaho weWorld Cup. Makore maviri gare gare akakunda zita rose, achigoverana mugumisiro uyu muItaly chete neshamwari yake nomukwikwidzi Gustav Thöni naAlberto Tomba. Thöni akanga akunda musoro wose mwaka mitatu yapfuura uye aizoidzorera muna 1975; akanga ari mumhanyi muna 1974, uye kana asiri Gros, angadai akahwina zvisingafungidziriki zvishanu zvinotevedzana. Gros akahwinawo menduru yebronze mumakwikwi e giant slalom pa 1974 World ChampionshipsmuSt. Moritz. 