 Nyora kupfuurira kweiyi ndima - Muna Gumiguru 2014 Marussia F1 yakazivisa kuti Stevens akabatana nechikwata semutyairi wekuchengetedza kweakasara mwaka wa2014. Pakutanga vakanga varonga kumumhanyisa mupurogiramu yokutanga yokurovedza ye2014 Japanese Grand Prix; zvisinei havana kukwanisa kudzorera mapepa akakodzera kuFIA Contract Recognition Board munguva. 