 Nyora kupfuurira kweiyi ndima - Mwaka wekutanga wePalermoSerie A yakabudirira zvikuru sezvo kirabhu yakakwanisa kupedzisa nzvimbo yechitanhatu inonakidza, ichirasikirwa nemitambo mipfumbamwe chete uyewo yakakodzera kuEFAFA Cup. Grosso akabatsira semutambi wenguva dzose, achiita 36 makwikwi, achiwanawo chinangwa chimwe chete. Munguva ye2005-06 Serie A mwaka, Grosso akaita mitambo makumi matatu nematatu yekirabhu yake sezvo Palermo akafadzwa, achipedza wechisere muSerie A. Aive mumwe wevatambi vana vePalermo vakaita Marcello Lippis 2006 FIFA World Cup-kuhwina squad, asi pakupera kwemutambo, Grosso akatengeswa kuInter Milan. 