F1: Valtteri Bottas, Zhou Guanyu to leave Sauber at end of season

Finland’s Valtteri Bottas and Chinese driver Zhou Guanyu will leave Sauber at the end of the season, the Formula One team said on Wednesday. “After open and constructive discussions with Valtteri Bottas and Zhou Guanyu, we mutually concluded that conditions to continue together could not be met so we agreed that it is time to