Formula One World Championship: Marcus Ericsson (SWE) Sauber walks the track at Formula One World Championship, Rd12, Italian Grand Prix, Preparations, Monza, Italy, Thursday 3 September 2015.
Marcus Ericsson (SWE) Sauber walks the track at Formula One World Championship, Rd12, Italian Grand Prix, Preparations, Monza, Italy, Thursday 3 September 2015.