Formula One - F1 - Russian Grand Prix - Sochi, Russia - 29/04/17 - Mercedes Formula One driver Lewis Hamilton of Britain drives in the pit lane during the qualifying session. REUTERS/Yuri Kochetkov/Pool
SOCHI, Russia (Reuters) - Formula One champions Mercedes were facing the prospect of a third defeat in four races after Ferrari ended two of the team's longest sequences of success at the Russian Grand Prix on Saturday.
For the first time in 31 races, since Singapore in September 2015, grand prix fans will see a starting grid without a Mercedes on the front row.
