LAS VEGAS : Formula One drivers were surprised by the sudden departure of race director Niels Wittich and are "a bit fed up" with the leadership of the governing FIA, Mercedes' George Russell said on Wednesday. The drivers were already at loggerheads with FIA President Mohammed Ben Sulayem on a number of issues, including swearing. The Grand Prix Drivers' Association, of which Russell is a director, issued a remarkable statement earlier this month asking the Emirati to treat them like adults