 Nyorai kupfuurira kweiyi ndima - Nokuda kwa1999, Diniz akabatanidza mutyairi ane ruzivo Jean Alesi paSauber. Akatsungirira kutanga kunopisa: Akamanikidzwa kuenda pamudyandigere mumakwikwi mashanu ekutanga akaitwa mumwaka; uye mumakwikwi echitanhatu emwaka wakaitirwa muCanada, akakwanisa kuwana poindi yake yekutanga yemwaka nekupedza munzvimbo yechitanhatu. Diniz akarohwa pamutambo unotevera muFrance, vasati vawana nzvimbo yechitanhatu mumakwikwi maviri akatevera uye gare gare vakatambura mamwe mareti anotevera mumakwikwi matanhatu anotevera. Pakupera kwaAugust, zvakaziviswa kuti Diniz aizoramba ari kuSauber muna 2000. MuEuropean Grand Prix, Diniz akarohwa nemutyairi weBenetton Alexander Wurz uyo akatumira mutyairi weSauber mumudziyo wekutenderera uye akatambura nebvi rakapwanyika uye papfudzi, zvichikonzerwa nekutenderera kwemotokari yake kwakakuvara. Mwaka wacho wakanga uri munyama kune vose boka uye mutyairi, zvisinei kunyange zvazvo Diniz akapedza makwikwi mana chete mumwaka wose akawana mapoinzi mumatatu acho. Diniz akapedza mwaka ari gumi nemana muDrivers Championship uye akawana mapoinzi matatu. 